The following data were taken recent annual reports of southwest airlines, which operates a low-fare airline service to 50 cities in the united states:
determine the number of times interest charges are earned for the current and preceding years.
(round to one decimal place.)
current year
interest expense $200,000,000
income before income taxes $845,000,000
determine the number of times interest charges are earned for the current year
a. 5.6
b. 5.2
c. 5.8
d. 4.1

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