Задача N5687 теория вероятностей объем выборки

5687. σ=6.4, δ=0.4, γ=0.975 Find the minimum sample size at which, with reliability γ=0.975, the accuracy of estimating the mathematical expectation of a normally distributed general population based on the sample mean is δ=0.4, if the mean is known standard deviation σ=6.4 of a normally distributed population.

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