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You lend a friend $30,000 which you friend will repay in five equal annual end-of-year payments of $10,000 with the first payment to be received 1 year from now. What rate of return does your loan receive?
Air-America has a policy of booking as many as 14 people on an airplane that can seat only 12. (Past studies have revealed that only 92% of the booked passengers actually arrive for the flight.)
1) We test the null hypothesis H0: μ = 10 and the alternative Ha: μ ≠ 10 for a normal population with σ = 4. A random sample of 16 observations is drawn from the population and we find the sample mean of these observations is x = 12. The P-value is c..
Last week Sarah had exams in Math and in Spanish. On the math exam, the mean was m = 40 with s = 5, and Sarah had a score of X = 45. On the Spanish exam, the mean was m = 60 with s = 8 and Sarah had a score of X = 68. For which class should Sara e..
Assume that demand for services per period is Pt = 1000 - Qt where Qt is the stock of the durable consumed. Let the discount factor for consumers and the firm be given by δ. Find the profit-maximizing prices and outputs for a durable goods monopol..
a biologist wants to test the null hypothesis that the mean mean wingspan of a certain kind of insect is 12.3mm against
Using the Capital Asset Pricing Model (on page 293 in the textbook), what is Foe's after tax cost of equity?
Determine the first- and second-order terms of a Taylor series expansion of the ratio estimator. Use the approximation to obtain an approximate expression for the bias of the ratio estimator under simple random sampling.
1. beechwood specialty electronics has just leased space for a store in the crestview hills towne center that will
Find the expected value (don't forget the coin toss). In order to make a little profit in the "long run", what should your minimum charge be for the privilege of playing this game?
A manufacturer claims that the life span of its tires is 52,000 miles. You work for a consumer protection agency and you are testing these tires. Assume the life spans of the tires are normally distributed.
You are to gather a systematic sample from a local phone book with 75,000 names. If every kth name in the phone book is to be selected, what value of k would you choose to gather a sample size of 500?
a) Compute a 95% Confidence Interval for the true population proportion of successes. b) Based on this analysis can you conclude that the new system meets the requirement? Explain your conclusion.
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