Consider the following regression estimates (FN8) Source SS Model 71007499.5 Residual 174967111 4 Total 245974611 4
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- Consider the following computer output of a multiple regression analysis relating annual salary to years of education and years of work experience. Regression Statistics Multiple R 0.73650.7365 R Square 0.54240.5424 Adjusted R Square 0.52250.5225 Standard Error 2124.60962124.6096 Observations 4949 ANOVA dfdf SSSS MSMS F� Significance F� Regression 22 246,127,958.1791246,127,958.1791 123,063,979.0896123,063,979.0896 27.262927.2629 1.6E-081.6E-08 Residual 4646 207,642,442.8821207,642,442.8821 4,513,966.14964,513,966.1496 Total 4848 453,770,401.0612453,770,401.0612 Coefficients Standard Error t� Stat P-value Lower 95%95% Upper 95%95% Intercept 14256.268814256.2688 2,513.30952,513.3095 5.67235.6723 0.0000008950.000000895 9197.23929197.2392 19,315.298419,315.2984 Education (Years) 2353.85412353.8541 336.0719336.0719 7.00407.0040 0.0000000090.000000009 1677.37651677.3765 3030.33173030.3317 Experience (Years) 832.8371832.8371…In multiple regression analysis involving 10 independent variables and 100 observations, the critical value tt for testing individual coefficients in the model will have:A. 10 degrees of freedomB. 89 degrees of freedomC. 100 degrees of freedomD. 9 degrees of freedom In a multiple regression analysis involving 40 observations and 5 independent variables, the total variation SST=350 and SSE=50. The multiple coefficient of determination is:A. 0.8469B. 0.8529C. 0.8408D. 0.8571Analyse the following regression model Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0% Intercept -70.215668 83.5899819 -0.840001 0.40144881 -234.58524 94.1539002 -234.58524 94.1539002 LandArea 5.4726E-06 2.86E-05 0.19134566 0.84835946 -5.077E-05 6.1712E-05 -5.077E-05 6.1712E-05 Rooms -12.67723 10.5132648 -1.2058319 0.22865076 -33.350291 7.9958309 -33.350291 7.9958309 EquivArea 3.78736382 0.24640948 15.3702034 1.3343E-41 3.30282944 4.2718982 3.30282944 4.2718982 Condition 16.0812012 10.2954004 1.56197919 0.11914546 -4.163456 36.3258584 -4.163456 36.3258584 Years 2.13812701 0.32673784 6.54386092 1.9948E-10 1.49563664 2.78061738 1.49563664 2.78061738
- For the following set of scores: 0 OHNM + 1 2 Y 16 6 9 3 0 4 9 (a) Compute the Pearson correlation. (b) Find the regression equation for predicting Y from X. X +You may need to use the appropriate technology to answer this question. Following is a portion of the computer output for a regression analysis relating y = maintenance expense (dollars per month) to x = usage (hours per week) of a particular brand of computer termina Analysis of Variance SOURCE Regression Error Total Predictor Constant X DF Adj SS 1 1575.76 8 349.14 9 1924.90 Regression Equation Y = 6.1092 +0.8951 X O Ho: B₁ * 0 H₂: B₁ = 0 Coef SE Coef 0.9361 0.1490 (a) Write the estimated regression equation. ý =| 6.1092+ 0.8951r O Ho: B₁ 20 H₂: B₁ <0 |0 Ho: Boo Hà Bo=0 |0 Ho: Bo=0 = 0 Ha: Bo #0 6.1092 0.8951 Ho: B₁ = 0 H₂: B₁ * 0 (b) Use a t test to determine whether monthly maintenance expense (dollars per month) is related to usage (hours per week) at the 0.05 level of significance. State the null and alternative hypotheses. Adj MS 1575.76 43.64 Find the value of the test statistic. (Round your answer to two decimal places.) 36.11 Xneed help
- The following regression output can be used to predict the weight of a Shetland pony based on the animal's age: Regression Statistics Multiple R 0.97224608 R Square 0.94526245 Adjusted R Square 0.9270166 Standard Error 14.0700917 Observations Intercept Age Coefficients Standard Error 55.7 tStat 12.08558531 P-value 4.61142 0.01918 7.19771 0.00553 5.9 0.818914857 True or false? The pony's weight is related to its age at the .01 level of significance. A True B) False1. Question 1: The Public Utility Commission is interested in describing the relationship between household monthly utility bills and the size of the house. A recent study of 30 randomly selected household resulted in the following regression results: SUMMARY OUTPUT Regression Statistics Multiple R R Square Adjusted R Square Standard Error 0.149769088 0.02243078 -0.012482407 16.72762259 Observations 30 ANOVA df SS MS 1 179.7725274 179.7725 0.642473 Regression Residual 28 7834.774007 279.8134 Total 29 8014.546534 t Stat 13.44691911 4.941135 3.26E-05 0.006560753 0.801544 0.429567 P-value Coefficients 66.44304169 0.005258733 Standard Eror Intercept Square Feet (a) Based on the information provided, indicate what, if any, conclusions can be reached about the relationship between utility bill and the size of the house in square feet. (b) Construct a 95% confidence interval for the true regression coefficient of Square Feet. How do you interpret this confidence interval? (c) What is the…For the following data: a. Find the regression equation for predicting Y from X. b. Calculate the Pearson correlation for these data. Use r2 and SS_Y to compute SSresidual and the standard error of estimate for the equation. Y 3 3 4 3 7 10 5 9.
- Interpret the coefficient estimate on Married in column 2, commenting on both magnitude and statistical significancetable 7 autocorrelations of the residuals from estimating the regression ΔgPMt = 0.0006 − 0.33301 ΔgPMt −1 + εt 1Q:1992–4Q:2001 (40 Observations) regression Statistics R-squared Standard error Observations Durbin–watson intercept ΔgPMt −1 ΔgPMt −4 Coefficient −0.0001 −0.0608 0.8720 0.9155 0.0057 40 2.6464 Standard error 0.0009 0.0687 0.0678 t-Statistic −0.0610 −0.8850 12.8683 lag 1 2 3 4 5 autocorrelation −0.1106 −0.5981 −0.1525 0.8496 −0.1099 table 8 shows the output from a regression on changes in the gPM for home Depot, where we have changed the specification of the ar regression. table 8 Change in gross Profit Margin for home Depot 1Q:1992–4Q:2001 a. identify the change that was made to the regression model. b. Discuss the rationale for changing the regression specificationConsider the following regression: Salary, = 478807.0504 + 735832.7839Experience, + 11921192.95Japanese - 635832.7839Expreience x Japanese; %3D A Japanese position player with 0 years of experience would be predicted to earn on average. ---