Hayworth Corporation has just segmented last year's income statement into its ten product lines. The chief executive officer (CEO) is curious as to what effect dropping one of the product lines at the beginning of last year would have had on overall company profit. What is the best number for the CEO to look at to determine the effect of this elimination on the net operating income of the company as a whole

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