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Can we eliminate most of the problems with Primary Keys by always using non-intelligent, random, system generated keys? Is there a trend in the relational database design world to go this way?
Business Economics, Economics
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Under the trade model with external economies of scale, is it possible for a country to be worse off with trade than it would have been without trade? Justify your answer.
A monopolist faces a market demand curve given by P(y) = 100 y. Its cost function is c(y) = y 2 + 20. (a) Find its profit - maximizing output level y and the market price p(y ). (b) Calculate its total revenue, total cos ...
From a random sample of 41 teens, it is found that on average they spend 31.8 hours each week online with a standard deviation of 3.65 hours. What is the 90% confidence interval for the amount of time they spend online e ...
In a random sample of 50 ?refrigerators, the mean repair cost was ?$146.00 and the population standard deviation is ?$17.80. Construct a 90?% confidence interval for the population mean repair cost. Interpret the results ...
Assume that Jimmy Cash has $2,100 in his checking account at Folsom Bank and uses his checking account card to withdraw $210 of cash from the bank's ATM machine. By what dollar amount did the M money supply change as a r ...
Indifference Curve and Budget Line Annie has an income of $180 an hour. Popcorn costs $6 a bag, and costs $4 a six-pack cola a. Draw a graph of Annie's budget line with six-pack of cola on the x-axis , and popcorn on th ...
The elasticity of demand for Dave's Famous is Pizza is 2.6. Dave is considering raising pizza prices by 20%. Is this a good idea? What will happen to his sales? His total revenue? Explain.
A sample of 36 U.S. households is taken and the average amount of newspaper garbage or recycling is found to be 27.8 pounds with a standard deviation of 2 pounds. Estimate, with 99% confidence, the mean amount of newspap ...
Given two events G and H , the probabilities of each occurring are as follows: P( G ) = 0.22; P( H ) = 0.34; P( H AND G ) = 0.09. Using this information: Find the complement of P ( H AND G ). Round to 2 places.
A company is considering producing a new product. Based on past records, management believes that there is a 70 percent chance that the new product will be successful, and a 30 percent chance it will not be successful. M ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As