A simple random sample of size n is drawn from a population that is normally distributed. The sample mean, x, is found to be 114, and the sample standard deviation, s, is found to be 10. (a) Construct a 98% confidence interval about u if the sample size, n, is 22. (b) Construct a 98% confidence interval about u if the sample size, n, is 15. (c) Construct a 96% confidence interval about u if the sample size, n, is 22.

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