Задача N5706 теория вероятностей объем выборки

5706. σ=132, δ=23.9, γ=0.851 Find the minimum sample size at which, with reliability γ=0.851, the accuracy of estimating the mathematical expectation a of the general population by the sample mean is δ=23.9, if the standard deviation σ is known =132 normally distributed population.

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