Задача N5714 теория вероятностей объем выборки

5714. σ=2, δ=0.15, γ=0.975 Find the minimum sample size at which, with a reliability of 0.975, the accuracy of estimating the mathematical expectation of a normally distributed population based on the sample mean is 0.15, if the standard deviation of the population σ= is known 2.

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