Задача N5372 теория вероятностей доверительный интервал

5372. x̅=64, n=176, σ=12. Find the confidence interval for estimating the mean of a normal distribution with a reliability of 0.960 given a sample mean of 64, a sample size of 176, and a standard deviation of 12.

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