A simple random sample of size n is drawn from population

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Reference no: EM13471008

A simple random sample of size n is drawn from a population that is normally distributed. The sample mean is found to be 114 and the sample standard deviation is found to be 10.

A. Construct a 90% confidence interval about μ if the sample size n is 15

B. Construct a 90% confidence interval about μ if the sample size n is 21

C. Construct a 99% confidence interval about μ if the sample size n is 15

Reference no: EM13471008

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