Задача N5381 теория вероятностей доверительный интервал

5381. x̅=52, n=418, σ=17. Find the confidence interval for estimating the mean of a normal distribution with a reliability of 0.990 given a sample mean of 52, a sample size of 418, and a standard deviation of 17.

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