Задача N5447 теория вероятностей доверительный интервал

5447. x̅=37.7, n=47, σ=1.7. Find the confidence interval for estimating with reliability γ=0.99 the unknown mathematical expectation a of a normally distributed feature X of the general population, if the general standard deviation σ=1.7, sample mean x̅=37.7, sample size n=47.

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