Задача N5352 теория вероятностей доверительный интервал

5352. x̅=15, n=348, σ=14. Find the confidence interval for estimating the mean of a normal distribution with a reliability of 0.910 given a sample mean of 15, a sample size of 348, and a standard deviation of 14.

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