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Confidence Intervals for Means
"Executives Whose Wives Stay at Home Earn More" was the headline for an article that appeared in the San Luis Obispo Telegram-Tribune (Oct. 14, 1994). To support this claim, the article presented data from a random sample of 231 married men who received MBA degrees in the late 1970s. The data are:
n Mean Salary Standard Deviation
Two-income family 140 $95,140 $15,000
Sole source of income 91 $124,510 $18,000
Construct a 95% confidence interval for the difference in these means.
What is the bank instability problem. Understand the Bryant and Diamond models of bank runs. I want you to understand the quantitative logic of the problem. Memorizing formulas is not the point here. Be able to understand how my decision about whethe..
what happens to the amount of debt held by the public. What would happens to the level of gross debt.
Alliance, Inc. sells gas lamps to consumers through retail outlets. Total industry sales for Alliance's relevant market last year were $100 million, with Alliance's sales representing 5% of that total. Contribution margin is 25%. Alliance's sales for..
If both players play optimally, who will win the game? Does this game have a first-mover advantage? Explain your reasoning.
Karen runs a print shop that makes posters for large companies. It is a very competitive business. The market price is currently $1.00 per poster. She has fixed costs of $250.00. What is her AFC per poster if she prints 1,000 posters? What is her AFC..
Messi has 20 kilos of strawberries and 10 kilos of raspberries. Denote by S and R the quantities he consumes of strawberries and raspberries, respectively. These are the only goods, and their prices (in $/kilo) are: pR = 4, pS = 1. Given his endowmen..
What is the least you would be willing to accept to sell your house? c. Why are the answers to the above two questions different?
Given the Cobb-Douglas production function (a) Graph the function (b) Show that the function displays diminishing marginal product. Explain what you are doing (c) Suppose the capital stock increases, what happens to the slope of the function?
Elucidate the return to deficit spending since the turn of the century. Consider the causes of the deficits and surpluses and provide your own insight.
A woman made 10 annual end-of-year purchases of $1000 worth of common stock. The stock paid no dividends. Then for 4 years she held the stock. At the end of the 4 years she sold all the stock for $28,000. What interest rate did she obtain on her inve..
You are considering an annuity which costs £50,000 today. The annuity pays £3,000 a year. The rate of return is 3.39%.
draw a supply and demand graph to illustrate the consumer surplus that occurs when the market is in equilibrium
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