Задача N5707 теория вероятностей объем выборки

5707. σ=146, δ=37.4, γ=0.828 Find the minimum sample size at which, with reliability γ=0.828, the accuracy of estimating the mathematical expectation a of the general population by the sample mean is δ=37.4, if the standard deviation σ is known =146 normally distributed population.

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