Determining Interval Estimate
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The numbers of cars sold annually by used car salespeople is normally distributed with a standard deviation of 15. A random sample of 15 salespeople was taken and the number of cars each sold is listed here. Find the 95% confidence interval estimate of the population mean. Interpret the interval estimate.
79 43 58 66 101 63 79 33
58 71 60 101 74 55 88
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Solution Summary
This solution uses the data of number of cars sold annually by used car salespeople to find the 95% confidence interval estimate of the population mean and the interval estimate.
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