5635. x̅=18.01, n=30, σ=3. 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=3, the sample mean in x̅v=18.01 and the sample size is n=30

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