Problem N5365 probability theory confidence interval

Problem N5365 probability theory confidence interval

5365. x̅=81, n=496, σ=28. Find the confidence interval for estimating the mean of a normal distribution with a reliability of 0.930 given a sample mean of 81, a sample size of 496, and a standard deviation of 28.

Additional information:

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)

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