Find what is the probability that the mean interest rate

Reference no: EM13203555

In a certain year, the mean intrest rate (in percent) for new auto loans was 11.28 nationally with a satnadard deviation of 1.5. In order to monitor the interest rates on new auto loans, a simple random sample of 50 loans is obtained. What is the probability that the mean interest rate in this sample is within .2 of the national average? Show all work clearly

Reference no: EM13203555

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