Confidence interval for time spent on computer terminals

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Reference no: EM13105603

In order to estimate the average time spent on the computer terminals per student at a local university, data were collected for a sample of 81 business students over a one week period. Assume the population standard deviation is 1.8 hours. If the sample mean is 9 hours, then the 95% confidence interval is?

Reference no: EM13105603

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