The manager of the danvers-hilton 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? h 0: h a: b. when h 0 cannot be rejected, can we conclude that the manager's claim is wrong? c. when h 0 can be rejected, can we conclude that the manager's claim is wrong?

Required: 1-a. the marketing manager argues that a $5,000 increase in the monthly advertising budget would increase monthly sales by $9,000. calculate the increase or decrease in net operating income. 1-b. should the advertising budget be increased ? yes no hintsreferencesebook & resources hint #1 check my work 8.value: 1.00 pointsrequired information 2-a. refer to the original data. management is considering using higher-quality components that would increase the variable expense by $2 per unit. the marketing manager believes that the higher-quality product would increase sales by 10% per month. calculate the change in total contribution margin. 2-b. should the higher-quality components be used? yes no