Задача N5511 теория вероятностей доверительный интервал

5511. x̅=89, n=535, σ=16 Find the confidence interval for estimating the mathematical expectation of a normal distribution with a reliability of 0.910, knowing the sample mean 89, sample size 535, and standard deviation 16.

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