Задача N5356 теория вероятностей доверительный интервал

5356. x̅=62, n=279, σ=29. Find the confidence interval for estimating the mean of a normal distribution with a reliability of 0.920 given a sample mean of 62, a sample size of 279, and a standard deviation of 29.

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