The marketing managers at omaha steaks used airlines' databases to mail a special offer to frequent flyers. eight weeks after shipping the steaks to the frequent flyers who responded to the offer, the company's salespeople followed up by telephoning customers to ask for new orders. this is an example of which types of nonstore retailing? a. direct mail and telemarketing b. direct selling and telemarketing c. telemarketing and online retailing d. online retailing and automatic vending e. automatic vending and direct selling

Which is cheaper: eating out or dining in? the mean cost of a flank steak, broccoli, and rice bought at the grocery store is $13.04 (money.msn website, november 7, 2012). a sample of 100 neighborhood restaurants showed a mean price of $12.75 and a standard deviation of $2 for a comparable restaurant meal. a. develop appropriate hypotheses for a test to determine whether the sample data support the conclusion that the mean cost of a restaurant meal is less than fixing a comparable meal at home. b. using the sample from the 100 restaurants, what is the p-value? c. at a = .05, what is your conclusion? d. repeat the preceding hypothesis test using the critical value approach