Задача N5704 теория вероятностей объем выборки

5704. σ=110, δ=31.2, γ=0.823 Find the minimum sample size at which, with reliability γ=0.823, the accuracy of estimating the mathematical expectation a of the general population by the sample mean is δ=31.2, if the standard deviation σ is known =110 normally distributed population.

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