Mary sets a target for the project budget during the planning phase. while executing the project, she checks to make sure she is within budget. mary determines that she needs to refine the scope of the project and change her timeline and costs for the project activities. mary is using which tool to manage the cost of this project? a. cost performance baseline
b. cost of quality
c. funding limit reconciliation
d. vendor bid analysis

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