Задача N5640 теория вероятностей доверительный интервал

5640. x̅=30.2, n=26, σ=6. 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=6, the sample mean in x̅v=30.2 and the sample size n=26

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