A plant manager wants to know the present worth of the maintenance costs for a reconditioned assembly line. An industrial engineer, who designed the system, estimates that the maintenance costs are expected to be zero for the first three years, $2000 in year four, $2500 in year five, and amounts increasing by $500 each year through year 10. At an interest rate of 8% per year compounded semiannually, the value of n to use in the P/G equation is:

The impact fiscal multiplier is a. usually estimated to have an average value of 2. b. usually estimated to have an average value of 0. c. the actual immediate multiplier effect of a fiscal policy action after taking into consideration direct fiscal offsets and other short-term crowding out of private spending. d. the multiplier effect of a fiscal policy action that applies to a long-run period after all influences on equilibrium real gdp have been taken into account.

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

Bob, an employee at machina corp., is well known among his colleagues because of his temper and impatience. during a heated argument with one of his supervisors, he reacts with hostility. bob's manager calls him in for a discussion and listens to what he has to say about the incident, while treating him with dignity and respect. this scenario can be best categorized as one that used