One important aspect of the new social contract is:A. Fixed pension benefits have increased significantly. B. Fixed pension benefits have remained a solid incentive for workers. C. Fixed pension benefits have been eliminated in the U. S. by around 90 percent. D. Defined contribution plans provide more returns and less risk.

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