The manager of a resort hotel stated that the mean guest bill for a weekend is $600 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. Ho: μ2 600 H:H< 600 Ho: HS 600 Ha:H > 600 Ho: H = 600 H:H + 600 The hypotheses Ho: u 2 600 and H: µ < 600 should be used because the accountant wants to test the manager's claim that the mean guest bill u is greater than or equal to 600 and find evidence to support u < 600. O The hypotheses Ho: H S 600 and H: u > 600 should be used because the accountant wants to test the manager's claim that the mean guest bill µ is less than or equal to 600 and find evidence to support u > 600. O The hypotheses Ho: H = 600 and H: H # 600 should be used because the accountant wants to test the manager's claim that the mean guest bill µ is equal to 600 and find evidence to support u + 600. (b) What conclusion is appropriate when H, cannot be rejected? O We are not able to conclude that the manager's claim is wrong. We cannot conclude that u > 600. O We are not able to conclude that the manager's claim is wrong. We can conclude that u 600. O We are not able to conclude that the manager's claim is wrong. We cannot conclude that u + 600. O We are able to conclude that the manager's claim is wrong. We can conclude that u = 600. O We are able to conclude that the manager's claim is wrong. We can conclude that u s 600. (c) What conclusion is appropriate when H, can be rejected? O We are able to conclude that the manager's claim is wrong. We can conclude that u < 600. O We are able to conclude that the manager's claim is wrong. We can conclude that u > 600. O We are not able to conclude that the manager's claim is wrong. We can conclude that µ > 600. O We are able to conclude that the manager's claim is wrong. We can conclude that u + 600. O We are not able to conclude that the manager's claim wrong. We can conclude that u < 600.