Задача N5722 теория вероятностей объем выборки

5722. Assuming a normal population with σ=4 sec., determine the minimum amount of testing that needs to be carried out so that, with reliability γ=0.93, the accuracy of estimating the general average processing time of a part is δ=1.5 sec.

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