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9-2: Introduction and Analysis Plan Southern New Hampshire University Quantitative Analysis Instructor: Berrin Aytac November 19, 2023
Introduction to the problem A philanthropic service organization reserved by the U.S. government named Paralyzed Veterans of America has been raising money to support different projects, such as advocacy for veterans' health care, research and education on spinal cord injury and illnesses, and support for veterans' benefits and rights since 1946. The fundraisers held by PVA have been by direct mail campaigns and have been a majority of the organization's way of raising money.  PVA sends free address labels or greeting cards to potential donors and requests a donation for receiving the gifts. PVA sends regular donation requests to more than four million participants, bringing in $100 million in donations. This method cost the organization over $40 million in postages, administrative workers, and gift expenses in 2016, a large amount of the money spent on mailing to people who never responded.  PVA is fortunate to receive responses from the few people they contact, but they seek to make more than spend. The organization aims to eliminate mailing to half the people, saving $20 million a year, and reduce paper waste.  Analysis Plan When pinpointing the different variables used to identify the donor characteristics, it is imperative to classify which variables are categorical and quantitative. 
Starting with the variables based on the donor's ZIP code, MALEVET (% Male veterans) would be quantitative. This variable will most likely not affect the operational performance; being a male veteran will not affect the operational performance, and the variable does not correlate with the goal. VIETVETS (% Vietnam Veterans) is also quantitative, and just like MALEVET, the variables do not correlate. WWIIVETS ( % WWII Veterans) is quantitative and does not correlate with operational performance. LOCALGOV (% Employed by the local government), STATEGOV (% Employed by the state government), and FEDGOV (% Employed by the federal government) are all quantitative, and just like the other variables based on the donor's zip code, they do not correlate with the operational performance.  Variables that are specific to the individual donors include HOMEOWNER, which is categorical, it identifies if the participants own a home or not. This variable will most likely not affect the operational performance. HIT (Number of times donor has responded to mail order offers other than PVA's) is quantitative and can be used to determine if the donor will participate in the PVA's fundraiser.  CARDPROM (Number of card promotions received lifetime) is quantitative. This variable can be of use in connection with how much the donor has donated to determine if the donor will give to the organization. MAXADATE (Date of most recent promotion received in YYMM Year  Month format) is a categorical variable. MAXADATE can identify when the last mail-in request was sent to the donor, giving an idea of the recent donor activity. NUMPROM (Number of
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promotions received lifetime) is quantitative and can be used in correlation with the operational performance.  CARDPRM12 (Number of card promotions received in last 12 months), NUMPRM12 (Number of promotions received in last 12 months), NGIFTALL (Number of gifts given a lifetime to date), CARDGIFT (Number of gifts to card promotions given lifetime to date) are all quantitative variables and can be used to determine operational performance. These variables are based on donor interaction and can provide insight into the organization's goal.  MINRAMNT (Amount of smallest gift to date in $) is quantitative and can be in operational performance. This variable can show their least generous contribution to date. MINRDATE (Date associated with the smallest gift to date—YYMM format) is quantitative, this variable can provide insight into when they donated the least amount. MAXRAMNT (Amount of largest gift to date in $)is quantitative and can be in operational performance. This variable can show their most generous contribution to date. MAXRDATE (Date associated with the largest gift to date—YYMM format) is quantitative, this variable can provide insight on when the donated the most amount to determine if the organization should continue targeting this donor.  LASTGIFT (Amount of most recent gift in $) and AVGGIFT (Average amount of gifts to date in $) are quantitative variables. These variables can be used to determine the operational performance by identifying if the donor is an active participant and how much they've donated to date. 
CONTROLN (Control number—unique record identifier),  HPHONE_D (Indicator variable for presence of a published home phone  number: 1=Yes; 0=No), and CLUSTER2 (Marketing Cluster Code—nominal field) are all categorical variables, that can identify the donor but not to determine if they are used to determine the operational performance.  CHILDREN (Number of children living at home) is quantitative and is most likely not a factor in operational performance.  The last variable is our response variable GIFTAMNT (Response variable—amount of last gift in $), which is a quantitative variable and will be used to determine the strength of the other variables in determining the operational performance in reducing the organization goal of $20 million in mail-in donations.  Based off the information gathered from the scatterplots, each variable shows either a positive (linear) or a negative (nonlinear) association. Those that are positive are, MINIRAMNT, MAAXRAMNT, LASTGIFT, and AVGGIFT. Every other variable has a nonlinear association, which can indicate that there is no association between GIFTAMNT and those variables. Problem Statement PVA needs to find a way to increase donations while also decreasing the amount of money spent on mailing gifts. A solution would be developing a model that determines the variables that influence the size of the gifts received from the donors.
Strategy Achieving PVA's goal of decreasing their mailing expense by $20 million, analyzing certain variables will give us a better understanding of which donors to go after. Analyzing the variables that tell which donors regularly donate, how much they donate, and when last they donated, can pinpoint the data we wish to receive. The method I will use is descriptive statistics, analyzing the GIFTAMNT as the main variable in determining which donors to go after. Histograms and scatterplots for each variable will determine the meaningful correlations in donor choice.  Based off the information from the summary statistics, we see the average amount of money gifted is about $15, with a standard deviation of $12, meaning there is a huge jump of donations from the donators. Gifting anywhere from $0 to over $200. This histogram shows the data in visual, there are several outliers or abnormalities in the data. Statistical Method Statistical methods help turn data into information, which turns into knowledge and, from there, into logical business decisions. ( Sharpe et al., 2019 ) The two types of statistical methods needed to justify the organization's results are descriptive and inferential. These two methods go hand in hand in understanding and effectively using data.  The descriptive statistics from GIFTAMT shows the average amount of money gifted is about $15, with a standard deviation of $12, meaning there is a huge jump of donations from the
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donators. Gifting anywhere from $0 to over $200. This histogram shows the data in visual, there are several outliers or abnormalities in the data. Justify Methods To better understand the variables in relation to GIFTAMT, multiple regression analysis should be calculated to find which variables are significant to PVA’s goal of targeting specific donors. Multiple regression analyzes the actual data along with the predicted data to find the significance for each variable. Depending on the p-value for each variable, we can identify which variables shares significance with GIFTAMT. Decision Process Descriptive statistics helps turn raw data into visualized data. My assumption for using descriptive statistics is to help turn the values of the donor information into a visual to help make sense of which donors to go after in maximizing donor funds for the organization. Descriptive statistics will help create an easy-to-read diagram of the desired information organizing, analyzing, and interpreting data. Inferential statistics allows us to examine the data and analyze sample information from a certain population to improve our knowledge about the population. ( Sharpe et al., 2019 )
Data Mining Data mining, specifically metadata, is helpful because it focuses on auxiliary information about variables in a database. It focuses on how, when, where, and sometimes why the data is collected. In this case, we focus on the donors. How does the organization contact the donors? (book) When they contact and when they donate, where they currently live and work, and why they are reached, are factors in understanding the approach. Variables Based off the information gathered from the scatterplots, each variable shows either a positive (linear) or a negative (nonlinear) association. Those that are positive are, MINIRAMNT, MAAXRAMNT, LASTGIFT, and AVGGIFT. Every other variable has a nonlinear association, which can indicate that there is no association between GIFTAMNT and those variables. Data Driven Calculation After computing the multiple regressions formula, five variables stood out with p-values lower than 0.05. Those are HOMEOWNER, LASTFIT, MINRAMNT, CLUSTER2, and AVGGIFT. The data displays the significance of the variables based off the p-value and estimate. There are several variables that display negative estimates, such as, HOMEOWNER, MINRAMNT, and CLUSTER2. Where the other variables show positive estimates. ( APPENDIX AC)
Summary of Results The results of the multiple regression analysis with p-values less than 0.05, show there are no random fluctuations between the estimate and p-vale. When the p-value and estimate are lower than 0, we can say there is a very unlikely that the variables are due to random fluctuations. The results from the R-square show there is a 54% chance that collectively these variables have a proportion of variance relative to GIFTAMNT. The R-square results are a little over half, which shows these variables contribute to a little over half of the donations. (APPENDIX AC) Improvement Solution After calculating the multiple regressions and analyzing the scatterplots between each variable and GIFTAMNT. PVA should target the donors based off these variables, HOMEOWNERS, LASTGIFT, MINRAMNT, CLUSTER2, AVGGIFT, and MAAXRAMNT. These variables all show positive significance to GIFTAMNT. If PVA changes their directions on sending mailing gifts to these donors they can reduce the amount of money they spend while increasing their donations, contributing to them saving $4 million dollars.
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Reference Sharpe, N. D., & Velleman , P. (2019). In R. D. DeVeaux (Ed.), Business Statistics (pp.1 –747). essay.
Appendix A- Descriptive Summary and Histogram of GIFTAMNT Descriptive Statistic: GIFTAMNT Histogram: GIFTAMNT Positively skewed with outliers The descriptive summary of GIFTAMNT (the amount of last gift in $) shows the mean, median, range, standard deviation, etc., regarding this independent variable. The histogram displays a bar
graph, and a visualization of the descriptive summary helps us understand and identify any patterns in the data. In this case, the mean or average amount of money donors have given and the standard deviation. The histogram is positively skewed, with outliers. The assumption of this model is normal, and the average amount of money donated is roughly $15. The histogram is unimodal and symmetrical. ( Sharpe et al., 2019 ) Appendix B - Scatterplot of HOMEOWNER and GIFTAMNT
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The scatterplot of HOMEOWNER shows if the donor is a homeowner or not. According to the histogram, more non-homeowners donate more money than homeowners. To understand the relationship between the variables, I recommend Multiple Regression to analyze and provide a solution to the problem of identifying whether looking at HOMEOWNER is a valid variable to use when examining which variable will help acquire more donations. Appendix C - Scatterplot of HIT variable in comparison to GIFTAMNT Nonlinear
The scatterplot of HIT (Number of times donor has responded to mail order offers other than PVA's) shows a nonlinear scatterplot of the donors' responses. After analyzing the scatterplot, there are a significant amount of donors that do not respond to mail offers other than PVA's. To understand the relationship between the variables, I recommend Multiple Regression to analyze and provide a solution to the problem of identifying whether looking at HIT is a valid variable to use when examining which variable will help acquire more donations. Appendix D - Scatterplot of MALEVET variable in comparison to GIFTAMNT Nonlinear The scatterplot MALEVET (% Male Veterans) shows a nonlinear scatterplot with a linear assumption of the donors who are male veterans. Analyzing the scatterplot, I see a high volume of male veterans, an average of 20-40% donate about $15 each to the organization. To
understand the relationship between the variables, I recommend Multiple Regression to analyze and provide a solution to the problem of identifying whether looking at MALEVET is a valid variable to use when examining which variable will help acquire more donations. Appendix E - Scatterplot of WWIIVETS variable in comparison to GIFTAMNT Nonlinear The scatterplot WWIIVETS (% WWII Veterans) shows a nonlinear scatterplot with a linear assumption of the donors who are World War 2 veterans. Examining the scatterplot, I see an average of 10-50% of World War 2 veterans who donate about $15 each to the organization. To understand the relationship between the variables, I recommend Multiple Regression to analyze
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and provide a solution to the problem of identifying whether looking at WWIIVETS is a valid variable to use when examining which variable will help acquire more donations. Appendix F - Scatterplot of VIETVETS variable in comparison to GIFTAMNT Nonlinear The scatterplot VIETVETS (% Vietnam Veterans) shows a nonlinear scatterplot with a linear assumption of the donors who are Vietnamese veterans. Looking over the scatterplot, I recognize there are about 10-45% of who donate about $15 to the organization. To understand the relationship between the variables, I recommend Multiple Regression to analyze and provide a
solution to the problem of identifying whether looking at VIETVETS is a valid variable to use when examining which variable will help acquire more donations. Appendix G - Scatterplot of LOCALGOV variable in comparison to GIFTAMNT Nonlinear The scatterplot LOCALGOV (% Employed by local government) shows a nonlinear scatterplot with a linear assumption of the donors employed by local government. To understand the relationship between the variables, I recommend Multiple Regression to analyze and provide a solution to the problem of identifying whether looking at LOCALGOV is a valid variable to use when examining which variable will help acquire more donations.
Appendix H - Scatterplot of STATEGOV variable in comparison to GIFTAMNT Nonlinear The scatterplot STATEGOV (% Employed by the State Government) shows a nonlinear scatterplot with a linear assumption of the donors employed by the state government. To understand the relationship between the variables, I recommend Multiple Regression to analyze and provide a solution to the problem of identifying whether looking at STATEGOV is a valid variable to use when examining which variable will help acquire more donations.
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Appendix I - Scatterplot of FEDGOV variable in comparison to GIFTAMNT Nonlinear The scatterplot FEDGOV (% Employed by the federal government) shows a nonlinear scatterplot with a linear assumption of the donors employed by the federal government. To understand the relationship between the variables, I recommend Multiple Regression to analyze and provide a solution to the problem of identifying whether looking at FEDGOV is a valid variable to use when examining which variable will help acquire more donations.
Appendix J - Scatterplot of CARDPROM variable in comparison to GIFTAMNT Nonlinear The scatterplot CARDPROM (Number of card promotions received lifetime) shows a nonlinear scatterplot with a linear assumption of the donors who have received a card promotion in their lifetime. After analyzing the scatterplot, there are a significant number of donors who've received the card promotion in their lifetime who have donated $15 to the organization. To understand the relationship between the variables, I recommend Multiple Regression to recognize and provide a
solution to the problem of identifying whether looking at CARDPROM is a valid variable to use when examining which variable will help acquire more donations. Appendix K - Scatterplot of MAXADATE2 variable in comparison to GIFTAMNT Nonlinear The scatterplot MAXADATE2 (Date of most recent promotion received in YYMM Year Month Format) shows a nonlinear scatterplot and when they've received their most recent marketing from PVA. After analyzing the scatterplot, there are a significant number of donors who received the promotion in September 2015. To understand the relationship between the variables, I
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recommend Multiple Regression to recognize and provide a solution to the problem of identifying whether looking at MAXADATE2 is a valid variable to use when examining which variable will help acquire more donations. Appendix L - Scatterplot of NUMPROM variable in comparison to GIFTAMNT Nonlinear The scatterplot NUMPROM (Number of promotions received lifetime) shows a nonlinear scatterplot with a linear assumption of the donors and how many received a promotion in a lifetime. After analyzing the scatterplot, there are a significant number of donors who received the promotion in September 2015. To understand the relationship between the variables, I recommend Multiple Regression to recognize and provide a solution to the problem of
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identifying whether looking at NUMPROM is a valid variable to use when examining which variable will help acquire more donations. Appendix M - Scatterplot of CARDPM12 variable in comparison to GIFTAMNT Nonlinear The scatterplot CARDPM12 (Number of card promotions received in last 12 months) shows a nonlinear scatterplot of how many received a card promotion in the last 12 months. After analyzing the scatterplot, there are a significant number of donors who received the promotion in in June or on. Month six. To understand the relationship between the variables, I recommend Multiple Regression to recognize and provide a solution to the problem of identifying whether looking at CARDPM12 is a valid variable to use when examining which variable will help acquire more donations.
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Appendix N - Scatterplot of NUMPRM12 variable in comparison to GIFTAMNT Nonlinear The scatterplot NUMPRM12 (Number of promotions received in last 12 months) shows a nonlinear scatterplot of how many received a promotion in the last 12 months. After analyzing the scatterplot, there are a significant number of donors who’ve gifted from $1-25. To understand the relationship between the variables, I recommend Multiple Regression to recognize and provide a solution to the problem of identifying whether looking at NUMPRM12 is a valid variable to use when examining which variable will help acquire more donations.
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Appendix O - Scatterplot of NGIFTALL variable in comparison to GIFTAMNT Nonlinear The scatterplot NGIFTALL (Number of gifts given lifetime to date) shows a nonlinear scatterplot of how many donors have given gifts in their lifetime to date. After analyzing the scatterplot, there are a significant number of donors who’ve gifted from $1-25. To understand the relationship between the variables, I recommend Multiple Regression to recognize and provide a solution to the problem of identifying whether looking at NGIFTALL is a valid variable to use when examining which variable will help acquire more donations.
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Appendix P - Scatterplot of CARDGIFT variable in comparison to GIFTAMNT Nonlinear The scatterplot CARDGIFT (Number of gifts to card promotions given lifetime to date) shows a nonlinear scatterplot of how many donors have given gifts in their lifetime to date. There are a between 1-10 group of donors who’ve donated a significant amount. To understand the relationship between the variables, I recommend Multiple Regression to recognize and provide a solution to the problem of identifying whether looking at CARDGIFT is a valid variable to use when examining which variable will help acquire more donations.
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Appendix Q - Scatterplot of MINRAMNT variable in comparison to GIFTAMNT Positive Linear The scatterplot MINRAMNT (Amount of smallest gift to date) shows a positive linear scatterplot of how many donors have given the smallest amount to date. The smallest amount given is between $0-10. To understand the relationship between the variables, I recommend Multiple Regression to recognize and provide a solution to the problem of identifying whether looking at MINRAMNT is a valid variable to use when examining which variable will help acquire more donations.
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Appendix R - Scatterplot of MINRDATE2 variable in comparison to GIFTAMNT Nonlinear The scatterplot MINRDATE2 (Date associated with the smallest gift to date—YYMM format) shows a nonlinear scatterplot of how many donors have given the smallest amount to date. The year with the most activity is 2010-2015. To understand the relationship between the variables even more in-depth, I recommend Multiple Regression to recognize and provide a solution to the problem of identifying whether looking at MINRDATE2 is a valid variable to use when examining which variable will help acquire more donations.
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Appendix S - Scatterplot of MAXRAMNT variable in comparison to GIFTAMNT Positive Linear The scatterplot MAXRAMNT (Amount of largest gift to date in $) shows a positive linear scatterplot of how many donors have given the largest amount to date. The data shows more values near 0 going up to about $50. To understand the relationship between the variables even more in-depth, I recommend Multiple Regression to recognize and provide a solution to the problem of identifying whether looking at MAXRAMNT is a valid variable to use when examining which variable will help acquire more donations.
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Appendix T - Scatterplot of MAXRDATE variable in comparison to GIFTAMNT Nonlinear The scatterplot MAXRDATE (Date associated with the largest gift to date—YYMM format) shows a nonlinear scatterplot of how many donors have given the largest amount to date. The data shows donors donated or gifted significantly more in 2015. To understand the relationship between the variables even more in-depth, I recommend Multiple Regression to recognize and provide a solution to the problem of identifying whether looking at MAXRDATE is a valid variable to use when examining which variable will help acquire more donations.
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Appendix U - Scatterplot of LASTGIFT variable in comparison to GIFTAMNT Positive Linear The scatterplot LASTGIFT (Amount of most recent gift in $) shows a positive linear scatterplot of how much has been given by donors recently. The data conveys a significant amount of donors donate about $1-20 to the organization. To understand the relationship between the variables even more in-depth, I recommend Multiple Regression to recognize and provide a solution to the problem of identifying whether looking at LASTGIFT is a valid variable to use when examining which variable will help acquire more donations.
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Appendix V - Scatterplot of AVGGIFT variable in comparison to GIFTAMNT Positive Linear The scatterplot AVGGIFT (Average amount of gifts to date in $) shows a positive linear scatterplot of how much has been given by donors recently. The data shows a lot of donors donate about $1-25 to the organization. To understand the relationship between the variables even more in-depth, I recommend Multiple Regression to recognize and provide a solution to the problem of identifying whether looking at AVGGIFT is a valid variable to use when examining which variable will help acquire more donations.
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Appendix W - Scatterplot of CONTROLN variable in comparison to GIFTAMNT Nonlinear The scatterplot CONTROLN (Control number—unique record identifier) shows a nonlinear scatterplot of how much has been given by donors recently. The data graphs out the identifier on the scatterplot there is no real significance of the data, just a visual of the identifier for each donor. To understand the relationship between the variables even more in-depth, I recommend Multiple Regression to recognize and provide a solution to the problem of identifying whether looking at CONTROLN is a valid variable to use when examining which variable will help acquire more donations.
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Appendix X - Scatterplot of HPHONE_D variable in comparison to GIFTAMNT Nonlinear The scatterplot HPHONE_D (Indicator variable for presence of a published home phone number: 1=Yes; 0=No) shows a nonlinear scatterplot of what donors have home phone numbers. The data shows there are more donors with home phone numbers than those without. To understand the relationship between the variables even more in-depth, I recommend Multiple Regression to recognize and provide a solution to the problem of identifying whether looking at
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HPHONE_D is a valid variable to use when examining which variable will help acquire more donations. Appendix Y -Scatterplot of CLUSTER2 variable in comparison to GIFTAMNT Nonlinear The scatterplot CLUSTER2 (Marketing Cluster Code—nominal field) shows a nonlinear scatterplot of marketing cluster codes. The data shows the marketing code associated with each donor. To understand the relationship between the variables even more in-depth, I recommend
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Multiple Regression to recognize and provide a solution to the problem of identifying whether looking at CLUSTER2is a valid variable to use when examining which variable will help acquire more donations. Appendix Z - Scatterplot of CHILDREN variable in comparison to GIFTAMNT Nonlinear The scatterplot CHILDREN (Number of children living at home) show a nonlinear scatterplot of how many children live at home. The data shows significantly more donors have no children living at home. To understand the relationship between the variables even more in-depth, I recommend Multiple Regression to recognize and provide a solution to the problem of
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identifying whether looking at CHILDREN a valid variable to use when examining which variable will help acquire more donations. APPENDIX AA – Multiple Regression between GIFTAMNT and every variable Multiple linear regression results: Parameter estimates: Parameter Estimate Std. Err. Alternative DF T-Stat P-value Intercept -139.7955 220.299 ≠ 03616 -0.63457163 0.5257 HOMEOWNER -0.78773019 0.30152264 ≠ 03616 -2.6125076 0.009 HIT -0.012254142 0.013146086 ≠ 03616 -0.93215138 0.3513 MALEVET 0.012543926 0.014349803 ≠ 03616 0.87415319 0.3821 VIETVETS -0.0051712551 0.011092739 ≠ 03616 -0.46618378 0.6411 STATEGOV 0.051863556 0.026706414 ≠ 03616 1.9419888 0.0522 LOCALGOV 0.0059163673 0.032229237 ≠ 03616 0.18357144 0.8544 WWIIVETS -0.0080025371 0.010018498 ≠ 03616 -0.79877616 0.4245 NUMPRM12 -0.092328116 0.061614074 ≠ 03616 -1.4984907 0.1341 CARDPM12 0.13278976 0.17743309 ≠ 03616 0.74839341 0.4543 NUMPROM 0.0040825446 0.03180203 ≠ 03616 0.12837371 0.8979 MAXADATE2 0.89998567 1.3859631 ≠ 03616 0.64935759 0.5161 FEDGOV 0.0012052412 0.036960721 ≠ 036160.032608705 0.974 CARDPROM 0.047829167 0.079530885 ≠ 03616 0.6013911 0.5476 LASTGIFT 0.59109941 0.021652584 ≠ 03616 27.299255<0.0001 MAXRDATE2 0.0098996672 0.0072744438 ≠ 03616 1.360883 0.1736 MAXRAMNT 0.0067681028 0.0081785452 ≠ 03616 0.82754362 0.408 MINRAMNT -0.19045816 0.039091704 ≠ 03616 -4.8720865<0.0001 MINRDATE2 0.0014126278 0.0061037357 ≠ 03616 0.23143659 0.817 CARDGIFT -0.12724046 0.076191589 ≠ 03616 -1.6700066 0.095 NGIFTALL -0.059310231 0.041263434 ≠ 03616 -1.4373557 0.1507 CLUSTER2 -0.017751322 0.0075444445 ≠ 03616 -2.3528999 0.0187 HPHONE_D 0.17543637 0.28458589 ≠ 03616 0.61646195 0.5376 CONTROLN -0.00000252495510.0000026204352 ≠ 03616 -0.96356326 0.3353 AVGGIFT 0.38267851 0.045026243 ≠ 03616 8.4990103<0.0001 AGE 0.0064900956 0.0095301905 ≠ 03616 0.68100377 0.4959 CHILDREN 0.040242306 0.24349601 ≠ 03616 0.16526885 0.8687
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Analysis of variance table for multiple regression model: Source DF SS MS F-stat P-value Model 26287983.3911076.284167.24213<0.0001 Error 3616239484.1866.229031 Total 3642527467.57 Summary of fit: Root MSE: 8.1381221 R-squared: 0.546 R-squared (adjusted): 0.5427 Residuals stored in new column: Residuals Predicted values stored in new column: Pred. Values APPENDIX AB – Residual vs. Predicted scatterplot of GIFTAMNT and every other variable Negative Skewed
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APPENDIX AC - Multiple Regression of HOMEOWNER, MINRAMNT, LASTGIFT, CLUSTER 2, and AVGGIFT Multiple linear regression results: Dependent Variable: GIFTAMNT Independent Variable(s): HOMEOWNER, MINRAMNT, LASTGIFT, CLUSTER2, AVGGIFT GIFTAMNT = 3.9652946 + -0.61398813 HOMEOWNER + -0.15162642 MINRAMNT + 0.60608717 LASTGIFT + -0.017142051 CLUSTER2 + 0.3768565 AVGGIFT Parameter estimates: Parameter Estimate Std. Err. Alternative DF T-Stat P-value Intercept 3.9652946 0.41579255 ≠ 03637 9.536714<0.0001 HOMEOWNER -0.61398813 0.29198558 ≠ 03637-2.1028029 0.0356 MINRAMNT -0.15162642 0.033891857 ≠ 03637-4.4738304<0.0001 LASTGIFT 0.60608717 0.020442098 ≠ 03637 29.648971<0.0001 CLUSTER2 -0.0171420510.0073948975 ≠ 03637-2.3180918 0.0205 AVGGIFT 0.3768565 0.040047463 ≠ 03637 9.4102464<0.0001 Analysis of variance table for multiple regression model: Source DF SS MS F-stat P-value Model 5284269.4956853.897850.24364<0.0001 Error 3637243198.0866.867771 Total 3642527467.57 Summary of fit: Root MSE: 8.1772716 R-squared: 0.5389 R-squared (adjusted): 0.5383 Residuals stored in new column: Residuals Predicted values stored in new column: Pred. Values
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