Using 15 National Football League (NFL) quarterbacks in the 2018 season, information was collected about their height in inches (x) and their weight in pounds (y). The paired height/weight data produces a least-squares regression line of = 4.6x Interpret the slope of the least-squares regression line. 121.67. O The expected increase in NFL quarterback height is 4.6 inches, for each 1 pound increase in weight. The expected decrease in NFL quarterback weight is 121.67 lb, for each 1 inch increase in height. O The expected increase in NFL quarterback weight is 4.6 lb, for each 1 inch increase in height. O The expected decrease in NFL quarterback height is 121.67 inches, for each 1 pound increase in weight. 1. [-/1.5 Points] DETAILS MY NOTES PRACTICE ANOT The manager of a resort hotel stated that the mean guest bill for a weekend is $800 or less. A member of the hotel's accounting staff noticed that the total charges for guest bills have been increasing in recent months. The accountant will use a sample of future weekend guest bills to test the manager's claim. (a) Which form of the hypotheses should be used to test the manager's claim? Explain. o: = 800 H : < 800 Ho: I = 800 H a: > 800 Ho: H = 800 H 800 The hypotheses Ho: = 800 and Ha: < 800 should be used because the accountant wants to test the manager's claim that the mean guest bill is 800 and find evidence to support < 800. The hypotheses Ho: = 800 and H > 800 should be used because the accountant wants to test the manager's claim that the mean guest bill is 800 and find evidence to support > 800. The hypotheses Ho: = 800 and H: 800 should be used because the accountant wants to test the manager's claim that the mean guest bill is 800 and find evidence to support # 800. (b) What conclusion is appropriate when Ho cannot be rejected? Do not reject the manager's claim. Conclude there is not evidence to support that # 800. Do not reject the manager's claim. Conclude there is not evidence to support that 800. Reject the manager's claim. Conclude there is evidence to support that 800. O Reject the manager's claim. Conclude there is evidence to support that = 800. Do not reject the manager's claim. Conclude there is not evidence to support that > 800. (c) What conclusion is appropriate when Ho can be rejected? Do not reject the manager's claim. Conclude there is not evidence to support that > 800. Reject the manager's claim. Conclude there is evidence to support that < 800. O Reject the manager's claim. Conclude there is evidence to support that > 800. Reject the manager's claim. Conclude there is evidence to support that # 800. Do not reject the manager's claim. Conclude there is not evidence to support that < 800.