The Dow Jones Industrial Average has had a mean gain of 432 pear year with a standard deviation of 722. A random sample of 40 years is selected. What is the probability that the mean gain for the sample was between 200 a ...
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A company is to hire two new employees. They have prepared a final list of twelve candidates, all of whom are equally qualified. Of these twelve candidates, seven are women. If the company decides to select two persons r ...
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A Diamond can be classified as either gem qulaity or industrial grade. Suppose that 92% of diamonds are classified as industrial grade. Would it be unusual if atleast one of five randomly selected diamonds is gem quality ...
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A recent study reported that the prevalence of hyperlipidemia is 30% in children 2 to 6 years of age. If 12 children are analyzed what is the probability that at least 3 are hyperlipidemic?
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A logging truck sales representative will phone either one or two potential buyers per day with probabilities of 0.25 and 0.75, respectively. Each contact will result in either no sale or a $75,000 sale with probabilitie ...
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Determine the internal rate of return for a project that costs -$149,500 and would yield after-tax cash flows of $23,000 the first year, $25,000 the second year, $28,000 the third year, $30,000 the fourth year, $34,000 t ...
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A laboratory worker finds that the 3% of his blood samples test positive for the HIV virus. In a random sample of 70 blood tests, what is the mean number that test positive for the HIV virus? (Round your answer to 1 deci ...
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If the return on stock A in year 1 was 11 %, in year 2 was -10 %, in year 3 was -4 % and in year 4 was 2 %, what was the standard deviation of returns for stock A over this four year period? (Round your answer to 1 decim ...
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Your client wants to save $500,000 for his retirement. He plans to retire in 20 years. How much must he deposit in his individual retirement account now, assuming that the account pays a fixed rate of 8% annually, to mak ...
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The rate of inflation in year 1 is expected to be 1.4%, year two is 1.8%, and years three through five is expected to be 2%. Assume the real risk-free rate, r*, is 3% for all maturities. What should the yield to maturity ...
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