Question: a) A 95% confidence interval was constructed for a random sample taken from a normal population. The CI is [48.02, 73.94]. What is the sample

a) A 95% confidence interval was constructed for a random sample

a) A 95% confidence interval was constructed for a random sample taken from a normal population. The CI is [48.02, 73.94]. What is the sample mean? Briey show your work. b) For a normal population with known variance 62, what is the confidence level for the CI 3? 2.416/x/H S ,u S J? + 2.416/x/ ? Briey show your work

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