The average price of homes sold in the u. s. in 2012 was μ = $240,000. a sample of 144 homes sold in chattanooga in 2012 showed an average price of $246,000. the population standard deviation (σ) is known to be $36,000. we are interested in determining whether or not the average price of homes sold in chattanooga is significantly more than the national average. question: what sampling distribution should be used to test whether the chattanooga sample mean is significantly higher than the national average?

The manager of the quick stop corner convenience store (which never closes) sells four cases of stein beer each day. order costs are $8.00 per order, and stein beer costs $.80 per six-pack (each case of stein beer contains four six-packs). orders arrive three days from the time they are placed. daily holding costs are equal to 5 percent of the cost of the beer. if he were to order 16 cases of stein beer at a time, what would be the average inventory level? a. 0.25 days b. 3 days c. 1 day d. 4 days e. 20 days