Jonas is in charge of designing a promotion campaign for netjets, a private jet service company that has a high level of service quality. in an effort to make the service more tangible to potential consumers, the ad jonas is creating will feature:
a) pictures of the exterior and interior of the planes. b) the price of leasing one of their jets for a week. c) its brand name prominently. d) images of destinations that can be reached via netjets. e) comments from satisfied customers.

Sales at a fast-food restaurant average $6,000 per day. the restaurant decided to introduce an advertising campaign to increase daily sales. to determine the effectiveness of the advertising campaign, a sample of 49 days of sales were taken. they found that the average daily sales were $6,300 per day. from past history, the restaurant knew that its population standard deviation is about $1,000. if the level of significance is 0.01, have sales increased as a result of the advertising campaign? multiple choicea)fail to reject the null hypothesis. b)reject the null hypothesis and conclude the mean is higher than $6,000 per day. c)reject the null hypothesis and conclude the mean is lower than $6,000 per day. d)reject the null hypothesis and conclude that the mean is equal to $6,000 per day. expert answer