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Explain the importance of random sampling. What problems/limitations could prevent a truly random sampling and how can they be prevented?
Business Economics, Economics
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Advertisements suggest that a new window design can save $400 per year in energy cost over its 30-year life. At an initial cost of $8,000 and zero salvage value, using IRR, is this window a good investment? MARR is 8%.
Determine the sample size n needed to construct a 99?% confidence interval to estimate the population mean when σ=24 and the margin of error equals 9.
How can governance failures such as that of Enron which resulted in major global turmoil be avoided
Do you believe corporation pose as a risk to our national economy and to domestic employees based upon external shocks to our economy as well as government regulations and Obamacare?
In a random sample of 100 college student 60 were females, 65 were under 21 years of age and 15 males were 21 years of age or older, a student is selected at random from the sample. What is the probability that a female ...
How do changes in income affect consumption (and saving)? What are factors other than income that can affect consumption?
Suppose a life insurance company sells a $230,000 ?one-year term life insurance policy to a 20?-year-old female for ?$330. The probability that the female survives the year is 0.999642. Compute and interpret the expected ...
In a specific sample size of 100, what is the range within the groups average iron level would be considered ususal? Using the Central Limit Theorem and the Empirical Rule.
Since quotas do not raise revenues but have the same trade effects as do tariffs, why not just have tariffs? Why would the government impose quotas when tariffs not only would reduce imports but also bring in new revenue ...
Consider the following Cournot oligopoly: There are two identical firms in the industry, which set their quantities produced simultaneously. The two firms face a market demand curve, Q = 120 - P, in which Q = q1 + q2. Ea ...
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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