Which of the following happens when there are market failures? a) firms compete more leading to more efficiency. b) the invisible hand automatically lowers prices and increases quality of products. c) the private sector promotes competition d) the public sector steps in to allocate resources e) firms temporarily seek society’s goals rather than maximize profit.

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

In two or three sentences describe how open market

helium brands ltd. has a beginning balance of retained earnings of $185 million. helium has a net income of $48 million and has paid a dividend of $15 million in the current year. the ending balance of retained earnings is: