Suppose that there is a flat 20% income tax rate, but otherwise the US tax law is the same as that in place. You make $40,000 per year. If your employer pays for your $4,000 per year insurance policy and deducts the expense from your salary, your after-tax, after-insurance take-home pay is . If instead you pay for your $4,000 per year policy directly, your after-tax, after-insurance take-home pay is .

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