Problem N5639 probability theory confidence interval

Problem N5639 probability theory confidence interval

5639. x̅=75.08, n=22, σ=15. Find the confidence interval for estimating with reliability γ=0.95 the unknown mathematical expectation m of a normally distributed feature Χ of the general population, if the general standard deviation is σ=15, the sample mean in x̅v=75.08 and the sample size n=22

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

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