Задача N5407 теория вероятностей доверительный интервал

5407. x̅=118.60, n=100, σ=10. Find confidence intervals for estimating the mathematical expectation a of a normal distribution with a reliability of 0.95, knowing the sample mean x̅=118.60, the sample size (number of observations) n=100, and the standard deviation σ=10.

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