# Question Help Regression was performed on test data for 49 car models to examine the association…

Question Help Regression was performed on test data for 49 car models to examine the association between the weight of the car (in thousands of pounds) and the fuel efficiency (in miles per gallon). Complete parts (a) and (b). Click the icon to view the regression table a) Create a 95% confidence interval for the average fuel efficiency among cars weighing 2600 pounds, and explain what your interval means. The 95% confidence interval is (37.92 3930) (Round to two decimal places as needed.) Explain what your interval means. Choose the correct answer below O A We are 95% confident that cars weighing more than 2600 pounds will have mean fuel efficiency between the bounds of the interval 3. We are 95% confident that cars weighing 2600 pounds will have a mean fuel efficiency between the bounds of the interval. O C. We are 95% confident that cars weighing less than 2600 pounds will have a mean fuel efficiency outside the confidence interval O D. We are 95% confident that a car weighing 2600 pounds will have a mean fuel efficiency between the bounds of the interval b) Create a 95% prediction interval for the gas mileage you might get driving your new 3000-pound SUV, and explain what that interval means. The 95% prediction interval is (27.71.37 01). (Round to two decimal places as needed) Explain what your interval means. Choose the correct answer below Regression was performed on test data for 49 car models to examine the association between the weight of the car (in thousands of pounds) and the fuel efficiency (in miles per gallon). Complete parts (a) and (b). Click the icon to view the regression table. O A. We are 95% confident that cars weighing more than 2600 pounds will have mean fuel efficiency between the bounds of the interval. B. We are 95% confident that cars weighing 2600 pounds will have a mean fuel efficiency between the bounds of the Interval. O C. We are 95% confident that cars weighing less than 2000 pounds will have a mean fuel efficiency outside the confidence interval OD. We are 95% confident that a car weighing 2600 pounds will have a mean fuel efficiency between the bounds of the interval b) Create a 95% prediction interval for the gas mileage you might get driving your new 3600 pound SUV, and explain what that interval means. The 95% prediction interval is (27.71.37.01) (Round to two decimal places as needed) Explain what your interval means. Choose the correct answer below. * We are 95% confident that cars weighing 3600 pounds will have a mean fuel efficiency outside the confidence interval 3. We are 95% confident that a car weighing 3600 pounds will have a fuel efficiency between the bounds of the interval OC. We are 95% confident that cars weighing 3600 pounds will have a fuel efficiency between the bounds of the interval OD. We are 95% confident that cars weighing less than 3600 pounds will have a mean fungsficiency outside the confidence interval innho ion table. i Data Table ITS ars car StdDev 4.81321 0.509801 for the 71.31 eeded Variable Count Mean MPG 49 36.3920 wt100049 2.95517 Dependent variable is: MPG R-squared = 75.8% s=2.281 with 49 – 2 = 47 df Variable Coefficient SE(Coeff) Intercept 54.8646 2.966 Weight -6.25094 0.3012 Choog t-ratio – 18.5 – 20.8 P-value 50.0001 0.0001 cars ta car Print at cars Done

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