Задача N5653 теория вероятностей доверительный интервал

5653. x̅=18.4, n=42, σ=2. Find the confidence interval for estimating with reliability γ=0.99 the unknown mathematical expectation m of a normally distributed feature Χ of the general population, if the general standard deviation is σ=2, the sample mean in x̅v=18.4 and the sample size n=42

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