# A college counselor wants to determine the average amount of time freshmen spend studying. He samples 61 freshmen. The mean of the resulting scores is 20 hours, the standard deviation is 6.5 hours. What is the point estimate and the margin of error?

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How do you construct a 95% confidence interval for the population mean?

How do you construct a 95% confidence interval for the population mean?

##### 1 Answer

Dec 6, 2017