* 100%Mon 1:51 PMUniBb PepE ExpO MaiU My*Ix. QueHarCorCC 201A MyE SelO Faca PrirE PeeAmmb//evo/index.html?deploymentid=59965220544781978962e780357131596&ld%3D894632737&snapshotid-1740686&AGE MINDTAPQ Search this course- Homework 7 (Chapter 14) - Part AO The American Association of Individual Investors (AAII) On-Line Discount Broker Survey polls members on their experiences with discount brokers. As part ofthe survey, members were asked to rate the quality of the speed of execution with their broker as well as provide an overall satisfaction rating for electronictrades. Possible responses (scores) were no opinion (0), unsatisfied (1), somewhat satisfied (2), satisfied (3), and very satisfied (4). For each broker summaryscores were computed by calculating a weighted average of the scores provided by each respondent. A portion of the survey results follow (AAII website,February 7, 2012).BrokerageSpeedSatisfactionScottrade, Inc.2.42.4Charles Schwab3.83.5Fidelity Brokerage Services3.94.0TD Ameritrade2.93.1E*Trade Financial3.63.7Vanguard Brokerage Services3.73.8USAA Brokerage Services2.52.8Thinkorswim4.03.7Wells IInvestments2.41.9Interactive Brokers3.23.5Zecco.coma. Select a scatter diagram for these data with the speed of execution as the independent variable.3.02.7A.B.4.5-4.5-dtvMacBook Air20D00F7FF10%&*78.9RYUPFGK* COTLL O FacO PrirA Ambuvevo/index.html?deploymentid=5996522054478197896265359&elSBN=9780357131596&id-894632737&snapshotld-1740686&GE MINDTAPQ Search thHomework 7 (Chapter 14) - Part A-2.5--2.5-2.53.5•44.52.53.5•4.5Speed of Execut ionSpeed of Execut ion- Select your answer - :b. What does the scatter diagram developed in part (a) indicate about the relationship between the two variables?The scatter diagram indicates a- Select your answer - linear relationship between a = speed of execution rating and y = overall satisfaction rating forelectronic trades.c. Develop the least squares estimated regression equation. Enter negative value as negative number.Satisfaction =Speed (to 4 decimals)d. Provide an interpretation for the slope of the estimated regression equation.The slope of the estimated regression line is approximately(to 4 decimals). So, a one unit- Select your answer - in the speed of executionrating will increase the overall satisfaction rating by approximatelypoints (to 1 decimal).e. Suppose Wells Fargo Investments developed new software to increase their speed of execution rating. If the new software is able to increase their speed ofexecution rating from the current value of 2.4 to the average speed of execution rating for the other 10 brokerage firms that were surveyed, what value wouldyou predict for the overall satisfaction rating?(to 3 decimals)tvMacBook Air20F3F4F6F1024&45679.RTYPSatisfactionSatisfaction

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Note: As per the guidelines, solution to 3 subparts has been provided. The data can be summarized in the following table: Speed x Satisfaction y 2.4 3.4 3.8 3.5 3.9 4 2.9 3.1 3.6 3.7 3.7 3.8 2.5 2.8 4 3.7 2.4 1.9 3.2 3.5 3 2.7(a) With speed of execution as the independent variable, the scatter plot in option B that represents the given data correctly.(b) The scatter diagram selected in part (a) (that is, scatterplot in option B) indicates strong positive linear between x=speed of execution and y=overall satisfaction rating for electronic trades.(c) In order to compute the regression coefficients, the following table needs to be used: x y x*y x2 y2 2.4 3.4 8.16 5.76 11.56 3.8 3.5 13.3 14.44 12.25 3.9 4 15.6 15.21 16 2.9 3.1 8.99 8.41 9.61 3.6 3.7 13.32 12.96 13.69 3.7 3.8 14.06 13.69 14.44 2.5 2.8 7 6.25 7.84 4 3.7 14.8 16 13.69 2.4 1.9 4.56 5.76 3.61 3.2 3.5 11.2 10.24 12.25 3 2.7 8.1 9 7.29 Σx=35.4 Σy=36.1 Σx*y=119.09 Σx2=117.72 Σy2=122.23 The means of the variables Speed x and Satisfaction y can be calculated as follows: x¯=∑i=1nxin=2.4+3.8+....+311=3.21818y¯=∑i=1nyin=3.4+3.5+....+2.711=3.28182 The further needed calculations are as follows: SSxx=∑i=1nxi2-1n∑i=1nxi2=117.72-111*35.42=3.79636SSyy=∑i=1nyi2-1n∑i=1nyi2=122.23-111*36.12=3.75636SSxy=∑i=1nxiyi-1n∑i=1nxi∑i=1nyi=119.09-111*35.4*36.1=2.91364 Therefore, based on the above calculations, the regression coefficients (the slope β, and the y-intercept α) are obtained as follows: β=SSxySSxx=2.913643.79636=0.7675α=y¯-βx¯=3.28182-0.7675*3.21818=0.8119 Therefore, the regression equation is: y=α+βx That is, Satisfaction=0.8119+0.7675 Speed

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GE MINDTAP Q Search this co Homework 7 (Chapter 14) - Part A The American Association of Individual Investors (AAII) On-Line Discount Broker Survey polls members on their experiences with discount brokers. As part of the survey, members were asked to rate the quality of the speed of execution with their broker as well as provide an overall satisfaction rating for electronic trades. Possible responses (scores) were no opinion (0), unsatisfied (1), somewhat satisfied (2), satisfied (3), and very satisfied (4). For each broker summary scores were computed by calculating a weighted average of the scores provided by each respondent. A portion of the survey results follow (AAII website, February 7, 2012). Brokerage Speed Satisfaction Scottrade, Inc. 2.4 2.4 Charles Schwab 3.8 3.5 Fidelity Brokerage Services 3.9 4.0 TD Ameritrade 2.9 3.1 ETrade Financial 3.6 3.7 Vanguard Brokerage Services 3.7 3.8 USAA Brokerage Services 2.5 2.8 Thinkorswim 4.0 3.7 Wells Fargo Investments 2.4 1.9 Interactive Brokers 3.2 3.5 Zecco.com 3.0 2.7 a. Select a scatter diagram for these data with the speed of execution as the independent variable. A. B. 4.5- 4.5+ 3.5 3.5 Sat isfaction Satisfaction

GE MINDTAP Q Search this co Homework 7 (Chapter 14) - Part A The American Association of Individual Investors (AAII) On-Line Discount Broker Survey polls members on their experiences with discount brokers. As part of the survey, members were asked to rate the quality of the speed of execution with their broker as well as provide an overall satisfaction rating for electronic trades. Possible responses (scores) were no opinion (0), unsatisfied (1), somewhat satisfied (2), satisfied (3), and very satisfied (4). For each broker summary scores were computed by calculating a weighted average of the scores provided by each respondent. A portion of the survey results follow (AAII website, February 7, 2012). Brokerage Speed Satisfaction Scottrade, Inc. 2.4 2.4 Charles Schwab 3.8 3.5 Fidelity Brokerage Services 3.9 4.0 TD Ameritrade 2.9 3.1 ETrade Financial 3.6 3.7 Vanguard Brokerage Services 3.7 3.8 USAA Brokerage Services 2.5 2.8 Thinkorswim 4.0 3.7 Wells Fargo Investments 2.4 1.9 Interactive Brokers 3.2 3.5 Zecco.com 3.0 2.7 a. Select a scatter diagram for these data with the speed of execution as the independent variable. A. B. 4.5- 4.5+ 3.5 3.5 Sat isfaction Satisfaction

MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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The American Association of Individual Investors (AAII) On-Line Discount Broker Survey polls members on their experiences with electronic trades handled by discount brokers. As part of the survey, members were asked to rate their satisfaction with the trade price and the speed of execution, as well as provide an overall satisfaction rating. Possible responses (scores) were no opinion (0), unsatisfied (1), somewhat satisfied (2), satisfied (3), and very satisfied (4). For each broker, summary scores were computed by computing a weighted average of the scores provided by each respondent. A portion the survey results follow (AAII web site, February 7, 2012). Brokerage Satisfaction withTrade Price Satisfaction withSpeed of Execution Overall Satisfaction withElectronic Trades Scottrade, Inc. 3.4 3.4 3.5 Charles Schwab 3.2 3.3 3.4 Fidelity Brokerage Services 3.1 3.4 3.9 TD Ameritrade 2.9 3.6 3.7 E*Trade Financial 2.9 3.2 2.9 (Not listed) 2.5 3.2 2.7 Vanguard Brokerage…
The American Association of Individual Investors (AAII) On-Line Discount Broker Survey polls members on their experiences with electronic trades handled by discount brokers. As part of the survey, members were asked to rate their satisfaction with the trade price and the speed of execution, as well as provide an overall satisfaction rating. Possible responses (scores) were no opinion (0), unsatisfied (1), somewhat satisfied (2), satisfied (3), and very satisfied (4). For each broker, summary scores were computed by computing a weighted average of the scores provided by each respondent. A portion the survey results follow (AAII web site, February 7, 2012). Click on the datafile logo to reference the data. 4.0 1.0 2.0 (a) Develop an estimated regression equation using trade price and speed of execution to predict overall satisfaction…
The American Association of Individual Investors (AAII) On-Line Discount Broker Survey polls members on their experiences with discount brokers. As part of the survey, members were asked to rate the quality of the speed of execution with their broker as well as provide an overall satisfaction rating for electronic trades. Possible responses (scores) were no opinion (0), unsatisfied (1), somewhat satisfied (2), satisfied (3), and very satisfied (4). For each broker summary scores were computed by calculating a weighted average of the scores provided by each respondent. A portion of the survey results follow (AAII website, February 7, 2012). Brokerage Speed Satisfaction Scottrade, Inc. 3.4 3.4 Charles Schwab 3.2 3.7 Fidelity Brokerage Services 2.5 2.6 TD Ameritrade 2.4 2.0 E*Trade Financial 2.4 2.2 Vanguard Brokerage Services 2.4 2.9 USAA Brokerage Services 2.9 3.2 Thinkorswim 3.4 3.4 Wells Fargo Investments 3.9 3.4 Interactive Brokers 3.9 3.8 Zecco.com 2.8 2.4 a. Select a scatter…
Suppose you have a data set about whether a person received a new drug or a sugar pill and the number of hours of deep sleep. a. Which of the sources of data best describe the data set? b. Is the data set based on a sample or a population? ... a. Choose the correct answer below. O A. These data are results of an observational study. O B. These data are collected by ongoing business activities. OC. These data are outcomes of a designed experiment. O D. These data are responses from a survey. O E. These data are distributed by an organization. b. Choose the correct answer below. O A. The data was taken based on a population. O B. The data was taken based on a sample. O C. There is no way to know whether the data was taken based on a sample or a population.
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The American Association of Individual Investors (AAII) On-Line Discount Broker Survey polls members on their experiences with discount brokers. As part of the survey, members were asked to rate the quality of the speed of execution with their broker as well as provide an overall satisfaction rating for electronic trades. Possible responses (scores) were no opinion (0), unsatisfled (1), somewhat satisfied (2), satisfied (3), and very satisfled (4). For each broker summary scores were computed by calculating a weighted average of the scores provided by each respondent. A portion of the survey results follow.t Brokerage Speed Satisfaction Scottrade, Inc. 3.4 3.5 Charles Schwab 3.3 3.4 Fidelity Brokerage Services 3.4 3.9 TD Ameritrade 3.6 3.7 E*Trade Financial 3.2 2.9 Vanguard Brokerage Services 3.8 2.8 USAA Brokerage Services 3.8 3.6 Thinkorswim 2.6 2.6 Wells Fargo Investments 2.7 2.3 Interactive Brokers 4.0 4.0 Zecco.com 2.5 2.5 (a) Develop a scatter diagram for these data with the…
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Last fall a college installed a new email system and conducted a series of training sessions to teach students and staff how to use the system. In the spring semester, the college used a survey to determine the level of satisfaction with the new system. In addition to measuring satisfaction, the survey asked whether or not each individual had attended a training session. The results of the survey are as follows: VERY SATISFIED SOMEWHAT SATISFIED SOMEWHAT DISSATISFIED VERY DISSATISFIED ATTENDED TRAINING 15 35 5 5 DID NOT ATTEND 5 45 35 15 In doing a chi-square test to determine if a person's level of satisfaction depends on whether they attended the training, what is the expected frequency for people who attended the training and are "somewhat satisfied" with the system? a) 25 b) 30 c) 35 d) 40
CENGAGE MINDTAP 1 Practice: Introduction Identify the type of descriptive statistics that matches each of the examples in the following table. Example Kamil is interested in whether people's party affiliation influences whether they see a role for government in reducing childhood obesity. He identifies the percentage of the U.S. population that believes the government should or should not take a role in combating the obesity epidemic and analyzes the results according to whether the survey respondents affiliate with the Democrats, Republicans, Independents, or Libertarians. Jeremiah is interested in what people think of gun control laws. He identifies the percentage of the U.S. population that believes gun control laws should be "more strict," "less strict," or "kept as they are now. Dimitri is interested in studying kidnapping. He identifies how the sex of the child and the relationship between abductor and abductee relate to the outcome of the kidnapping. Which of the following is…
The American Association of Individual Investors (AAII) On-Line Discount Broker Survey polls members on their experiences with discount brokers. As part of the survey, members were asked to rate the quality of the speed of execution with their broker as well as provide an overall satisfaction rating for electronic trades. Possible responses (scores) were no opinion (0), unsatisfied (1), somewhat satisfied (2), satisfied (3), and very satisfied (4). For each broker summary scores were computed by calculating a weighted average of the scores provided by each respondent. Suppose a portion of the survey results follow. Brokerage Speed Satisfaction A 3.4 3.5 B 3.3 3.2 C 3.4 3.9 D 3.6 3.8 E 3.2 2.9 F 3.8 2.8 G 3.8 3.6 H 2.6 2.7 I 2.7 2.3 J 4.0 4.0 K 2.5 2.5 These ratings data on x = the quality of the speed of execution and y = overall satisfaction with electronic trades provided the estimated regression equation ŷ = 0.255 + 0.892x. At the 0.05 level of…