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A recent study of 50 self-service gasoline stations in the Greater Cincinnati-Northern Kentucky metropolitan area revealed that the mean price of unleaded gas was $2.029 per gallon. The sample standard deviation was $0.03 per gallon.
a. Determine a 99 percent confidence interval for the population mean price.
b. Would it be reasonable to conclude that the population mean was $1.50? Why or why not?
Suppose the last five motels are "cut-rate" motels. Describe how you would select a random sample of three regular motels and two cut-rate motels. Three can be chosen from the first 20 motels in how many ways
Two processes can be used for producing a polymer that reduces friction loss in engines. Process T will have a first cost of $750,000, an operating cost of $60,000 per year, and a salvage value of $80,000 after its 2-year life.
A retail store faces a demand equation for Roller Blades given by: Q= 180-1.5P where Q is the number of pairs sold per month and P is the price per pair in dollars. a. The store currently charges P =$80 per pair. At this price, determine the number..
Your credit card has a current balance of $4965.20. This Balance is accruing interest at a nominal rate of 9.0% compounded monthly. Assuming you didnt spend any more on this card, what uniform monthly payment over the next 36 months would be requi..
Consider a person with an initial wealth level of 100 who faces a change to win 20 with probability 1/2 and to lose 20 with probability 1/2. A. What is the expected value of the gamble Is this gamble fair or better than fair
Do these utility functions exhibit diminishing marginal utility of X Explain. For each utility function, calculate the marginal rate of substitution of good X for good Y (i.e. -marginal value of X, measured in units of good Y) associated with the bun..
Real GDP Consumption Planned Investment Government Purchases Net Exports $1,000 $1,000 $100 $150 -$50 2,000 1,900 100 150 -50 3,000 2,800 100 150 -50 4,000 3,700 100 150 -501) Using the table above, answer the following question. The numbers in the t..
Ahead of you is a wonderful weekend. You bought a ticket to see a professional football game. The ticket cost $50 a piece, plus you estimate a cost of $25 each for gas to the game and parking. Since the game is in the middle of the afternoon, you ..
Suppose demand for widgets is given by the equation P = 20 - 0.5Q. Originally, the price of the good is $10 per unit. When a tax of $2 per unit is imposed, the price of the good rises to $12 per unit. What is the excess burden of the tax
Draw a money market diagram and determine the shift of the money supply curve due to an open-market operation; determine if the equilibrium interest rate rises or falls. Also be able to determine what happens to investment spending and consumption..
Michelle and James each live alone in an isolated region. They each have the same resources available, and they grow potatoes and raise chickens. If Michelle devotes all her resources to growing potatoes, she can raise 200 pounds of potatoes per y..
The Metropolitan Symphony in Toledo, Ohio, has had great success with a "Senior Citizens' Night" promotion. By offering half off its regular $20 admission price, average nightly attendance has risen from 4,000 to 6,000 persons.
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