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What is the 98% confidence interval for B1 (with appropriate units)? O a. ($12,141.3228, $62,898.8772) b. ($121,413.2280/salesperson, $628,988.7720/salesperson) OC. ($12.1413/salesperson, $62.8989/salesperson) O d. None of the answers is correct Oe. ($119,137.3864, $139,874.8136)

What is the 98% confidence interval for B1 (with appropriate units)? O a. ($12,141.3228, $62,898.8772) b. ($121,413.2280/salesperson, $628,988.7720/salesperson) OC. ($12.1413/salesperson, $62.8989/salesperson) O d. None of the answers is correct Oe. ($119,137.3864, $139,874.8136)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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QUESTION 7 Dep.=Annual Sales Indep.-Salespersons SUMMARY OUTPUT Regression Statistics Multiple R R Square Adjusted R Square Standard Error Observations 26.0000 ANOVA Significance df SS MS Regression Residual 254.6609 Total Standard Error 13.2994 Coefficients t Stat P-value Lower 95% Upper 95% Intercept Salespersons 91.9861 6.9166 37.5201 10.1841 3.6842 SE CI Lower PI Lowerll CI P Predicted Predicted Upper|| Uppe Save and Submit to save and submit. Click Save All Answers to save all answers. MacBook Ai
Transcribed Image Text:QUESTION 7 Dep.=Annual Sales Indep.-Salespersons SUMMARY OUTPUT Regression Statistics Multiple R R Square Adjusted R Square Standard Error Observations 26.0000 ANOVA Significance df SS MS Regression Residual 254.6609 Total Standard Error 13.2994 Coefficients t Stat P-value Lower 95% Upper 95% Intercept Salespersons 91.9861 6.9166 37.5201 10.1841 3.6842 SE CI Lower PI Lowerll CI P Predicted Predicted Upper|| Uppe Save and Submit to save and submit. Click Save All Answers to save all answers. MacBook Ai
Predicted Value 129.5061 167.0262 Lower 95% Upper 95% Lower 95% Upper 95% Value 1.0000 4.1608 2.0000 8.0735 Is there a relationship between the number of Salespersons (units-10 salespersons) at a branch office and Annual Sales (units-$100,000)? Us above to answer the following question. What is the 98% confidence interval for B1 (with appropriate units)? O a. ($12,141.3228, $62,898.8772) O b. ($121,413.2280/salesperson, $628,988.7720/salesperson) Oc. ($12.1413/salesperson, $62.8989/salesperson) d. None of the answers is correct e. ($119,137.3864, $139,874.8136) QUESTION 8 The Global Business Travel Association (GBTA) reported the domestic airfare for business travel for the current year and the previous year. B flights with their domestic airfares (in $) shown for both years. Suppose GBTA wished to see if the average airfare for the current year is grea airfare for the previous year at a=,01. Currant 252 760 ECO AE1 252 660 Click Save and Submit to save and submit. Click Save All Answers to save all answers. MacBook Air D00 O00 FA F6 F3 F2 F1 & % $ 4 # 1 2 Q W E
Transcribed Image Text:Predicted Value 129.5061 167.0262 Lower 95% Upper 95% Lower 95% Upper 95% Value 1.0000 4.1608 2.0000 8.0735 Is there a relationship between the number of Salespersons (units-10 salespersons) at a branch office and Annual Sales (units-$100,000)? Us above to answer the following question. What is the 98% confidence interval for B1 (with appropriate units)? O a. ($12,141.3228, $62,898.8772) O b. ($121,413.2280/salesperson, $628,988.7720/salesperson) Oc. ($12.1413/salesperson, $62.8989/salesperson) d. None of the answers is correct e. ($119,137.3864, $139,874.8136) QUESTION 8 The Global Business Travel Association (GBTA) reported the domestic airfare for business travel for the current year and the previous year. B flights with their domestic airfares (in $) shown for both years. Suppose GBTA wished to see if the average airfare for the current year is grea airfare for the previous year at a=,01. Currant 252 760 ECO AE1 252 660 Click Save and Submit to save and submit. Click Save All Answers to save all answers. MacBook Air D00 O00 FA F6 F3 F2 F1 & % $ 4 # 1 2 Q W E
Expert Solution
Given

beta1  = 37.5201
SE = 10.1841

t -critical value at df = 24 is 2.492.

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