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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 a monopolist producing Q units of output faces the demand curve P =20 -Q. Its total cost when producing Q units of output is TC = F + Q2, where F is a fixed cost. The marginal cost is MC = 2Q. a) For what values of F can a profit-maximizin..
Suppose that the price of a stock is $50 at the beginning of a year and $53 at the end of the year, and it pays a dividend of $2 during the year. Calculate the stock's current yield, capital-gains yield, and the return.
In many states with lotteries, people can take their winnings in a single, discounted, lump-sum payment or in a series of annual payments for 20 to30 years. What factors should a winner consider in determining how to take the money
Each society in the nation is suddenly responsible for designing its own local commodity based financial system, and you have been assigned the task of selecting what commodity your society will use and how it will be implemented.
Miguel is a farmer who produces oats. The oat market is a pure competition market. Miguel is now making choices in the short run. The going rate for oats is currently $24 per unit. The total cost function is as the table above shows. What is the p..
A firm must decide whether to provide their salespeople with firm-owned cars or to pay a mileage allowance for their own cars. New cars would cost about $28,000 each and could be resold 4 years later for about $11,000 each.
A woman managing a photocopy establishment for $25,000 per year decides to open her own duplicating place. Her revenue during the first year of operation is $120,000, and her expenses are as follows: Salaries- $45,000, Supplies $15,000, Rent- $10,..
a city is spending $20 million on a new sewage system. The expected life of the system is 40 years, and it will have no market value at the end of its life. Operating and maintenance expenses for the system are projected to average $0.6 million pe..
Don Ball is a 55-year-old engineer. According to mortality tables, a male at age 55 has an average life expectancy of 21 more years. Don has accumulated $48,500 toward his retirement. He is now adding $5000 per year to his retirement fund. The fun..
Three students have each saved $1000. Each has an investment opportunity in which he or she can invest up to $2000. The rates of return on the students' investment projects are: Harry: 5% Ron: 8% Hermione: 20%.) If borrowing and lending is prohibit..
A and 20 milligrams of vitamin B while minimizing cost. An ounce of oats contributes 8.5 milligrams of vitamin A and 1.2 milligram of vitamin B, whereas an ounce of rice contributes 6.4 milligrams of A and 2.2 milligrams of B. An ounce of oats cos..
What is the four-firm concentration ratio for this industry? ___74%_ b) What is the eight-firm concentration ratio for this industry? _____98% Suppose that the distribution of sales within an industry is as shown in the table.
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