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suppose that the amount of time a teenagers spend on the internet is normally distributed with...

suppose that the amount of time a teenagers spend on the internet is normally distributed with a standard deviation of 1.5 hours. A sample of 100 teenagers is selected at random, and the sample mean computed as 6.5 hours.

a. determine the 95% confidence interval estimate of the population mean.

b. interpret what the confidence interval estimate tells you.

math   Statistics-And-Probability   
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TOPIC:Confidence interval for the population mean.

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