You have a colleague who swears by using breakeven analyses. He or she has not been on the job long enough to be able to understand the reasons why this tool isn't always reliable.

Which of the following reasons should you share with him or her?

a. The company's accounting system does not clearly distinguish between fixed and variable costs.
b. Breakeven analysis is outdated.
c. Not everyone in the company understands or uses breakeven analyses.
d. Breakeven analysis is hard to calculate; and it is difficult to explain how the results are derived.

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