Задача N5534 теория вероятностей доверительный интервал

5534. x̅=16.8, n=25, σ=5. Find the confidence interval for estimating with reliability γ=0.99 the unknown mathematical expectation a of the normally distributed feature X of the general population, if the sample mean x̅v=16.8, the general standard deviation σ=5 and the sample size n=25 are known.

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