Question: Problem 1 a) A 95% confidence interval was constructed for a random sample taken from a normal population. The Cl is [48.02, 73.94]. What

Problem 1 a) A 95% confidence interval was constructed for a random

Problem 1 a) A 95% confidence interval was constructed for a random sample taken from a normal population. The Cl is [48.02, 73.94]. What is the sample mean? Briefly show your work. b) For a normal population with known variance o, what is the confidence level for the CI x-2.410/nx+2.41o/n? Briefly show your work.

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