Mean iq score of the sample
Assume that IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. If a sample of 70 people are selected, find the probability that the mean IQ score of the sample is greater than 102.
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If the bank wants to earn an 8.5% rate of return on its money on average, what interest rate must you quote to Jim on this loan? Assume than in case of default, the bank is on average able to recover 50 cents on the dollar owed.
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