For questions 20 24 Management believes that more employees a donut store has the more total profit a store willhave,and they have decided to conduct a linear regression analysis using data from twenty stores 20)What is the slope of the linear regression equation A 9 71 B 588 15 C 0 13 D 0 016 21)What is the coefficient of determination A 9 71 B 588 15 C 0 13 D 0 016 22)Management is considering opening a new store with 5 employees What is the expected total profit A 725 25 B 636 70 C 425 18 D 125 62 23)Management wants to ensure they have agoodmodel to predict total profit Which of the following statements best describes their findings A For coefficient of determination cannot reject the null hypothesis at the 0 05 level B For coefficient of determination can reject the null hypothesis at the 0 05 level C The 95 confidence interval for the slope 28 27 to 47 69 this range which includes 0 indicates good results D The 95 confidence interval for the slope 28 27 to 47 69 this range which includes 0 indicates bad results E Both A and D are correct 24)What is the 95 confidence interval for total profit if a new store has 5 employees A 499 to 774 B 137 to 774 C 137 to 499 D 137 to 1136 25)Management believes pastry sales significantly contributes to the variability in total profit What percent of variability in total profit is explained by profit from pastry sales A 28 4 B 18 8 C 3 5 D 81 3 26)True of false A linear regression model that is statistically significant is sufficient to prove causation A True B False Use the following data for questions 20 25 Profit from Store Number of Dozens sold Sales of featured Profit from Featured Item Total Identifier employees each day item each day Pastry Sales Sales Profit A 10 6 26 54 08 362 A2 11 9 121 436 557 A3 3 13 10 130 530 660 A4 3 14 81 510 59 A5 8 9 24 18 142 A6 12 16 63 560 23 47 12 135 244 379 48 30 30 590 20 A9 29 32 535 567 A10 12 25 63 775 838 411 10 120 540 560 A12 10 23 70 76 831 A13 3 26 96 78 174 A14 25 121 925 1046 A15 17 104 536 640 416 10 30 530 560 A17 6 22 112 908 1020 A18 14 70 184 754 419 11 8 110 496 606 420 28 77 764 841 For questions 20 24 Management believes that more employees a donut store has the more total profit a store will have, and they have decided to conduct a linear regression analysis using data from twenty stores 20) What is the slope of the linear regression equation A 9 71 B 588 15 C 0 13 D 0 016 21) What is the coefficient of determination A 9 71 B 588 15 C 0 13 D 0 016 22) Management is considering opening a new store with 5 employees What is the expected total profit A 725 25 B 636 70 c 425 18 D 125 62 23) Management wants to ensure they have a good model to predict total profit Which of the following statements best describes their findings A For coefficient of determination cannot reject the null hypothesis at the 0 05 level B For coefficient of determination can reject the null hypothesis at the 0 05 level c The 95 confidence interval for the slope 28 27 to 47 69 this range which includes 0 indicates good results D The 95 confidence interval for the slope 28 27 to 47 69 this range which includes 0 indicates bad results E Both A and D are correct 24) What is the 95 confidence interval for total profit if a new store has 5 employees A 499 to 774 B 137 to 774 c 137 to 499 D 137 to 1136

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For questions 20 24  Management believes that more employees a donut store has the more total profit a store willhave,and they have decided to conduct a linear regression analysis using data from twenty stores  20)What is the slope of the linear regression equation  A 9 71 B 588 15 C 0 13 D 0 016 21)What is the coefficient of determination  A 9 71 B 588 15 C 0 13 D 0 016 22)Management is considering opening a new store with 5 employees What is the expected total profit  A 725 25 B 636 70 C 425 18 D 125 62 23)Management wants to ensure they have agoodmodel to predict total profit Which of the following statements best describes their findings  A For coefficient of determination   cannot reject the null hypothesis at the 0 05 level B For coefficient of determination  can reject the null hypothesis at the 0 05 level C The 95  confidence interval for the slope  28 27 to 47 69   this range which includes 0 indicates good results D The 95  confidence interval for the slope  28 27 to 47 69   this range which includes 0 indicates bad results E Both A and D are correct 24)What is the 95  confidence interval for total profit if a new store has 5 employees  A 499 to 774 B 137 to 774 C 137 to 499 D 137 to 1136 25)Management believes pastry sales significantly contributes to the variability in total profit What percent of variability in total profit is explained by profit from pastry sales  A 28 4  B 18 8  C 3 5  D 81 3  26)True of false  A linear regression model that is statistically significant is sufficient to prove causation  A True B False Use the following data for questions 20 25  Profit from Store Number of Dozens sold Sales of featured Profit from Featured Item Total Identifier employees each day item each day Pastry Sales Sales Profit A 10 6 26 54  08 362 A2 11 9 121 436 557 A3 3 13 10 130 530 660 A4 3 14 81 510 59 A5 8 9 24 18 142 A6 12 16 63 560 23 47 12 135 244 379 48 30 30 590 20 A9 29 32 535 567 A10 12 25 63 775 838 411 10 120 540 560 A12 10 23 70 76 831 A13 3 26 96 78 174 A14 25 121 925 1046 A15 17 104 536 640 416 10 30 530 560 A17 6 22 112 908 1020 A18 14 70 184 754 419 11 8 110 496 606 420 28 77 764 841 For questions 20 24  Management believes that more employees a donut store has the more total profit a store will have, and they have decided to conduct a linear regression analysis using data from twenty stores  20) What is the slope of the linear regression equation  A  9 71 B  588 15 C  0 13 D  0 016 21) What is the coefficient of determination  A  9 71 B  588 15 C  0 13 D  0 016 22) Management is considering opening a new store with 5 employees  What is the expected total profit  A  725 25 B  636 70 c  425 18 D  125 62 23) Management wants to ensure they have a good model to predict total profit  Which of the following statements best describes their findings  A  For coefficient of determination   cannot reject the null hypothesis at the 0 05 level B  For coefficient of determination   can reject the null hypothesis at the 0 05 level c  The 95  confidence interval for the slope  28 27 to 47 69   this range which includes 0 indicates good results D  The 95  confidence interval for the slope  28 27 to 47 69   this range which includes 0 indicates bad results E  Both A and D are correct 24) What is the 95  confidence interval for total profit if a new store has 5 employees  A  499 to 774 B  137 to 774 c  137 to 499 D  137 to 1136

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For questions 20-24: Management believes that more employees a donut store has the more total profit a store willhave,and they have decided to conduct a

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