Задача N5696 теория вероятностей объем выборки

5696. σ=12.2, δ=5.7, γ=0.994. Find the minimum sample size at which, with reliability γ=0.994, the accuracy of estimating the mathematical expectation a of the population based on the sample mean is δ=5.7, if the standard deviation σ=12.2 of a normally distributed population is known.

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