5444. x̅=10.2, n=25, σ=5. 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=5, the sample mean x̅v=10.2 and the sample size n=25.

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