A simple random sample of size n is drawn from a population that is normally distributed. The sample mean, x, is found to be 106, and the sample standard deviation, s, is found to be 10. (a) Construct a 98% confidence interval about μ if the sample size, n, is 13. (b) Construct a 98% 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 13.

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