Задача N5555 теория вероятностей доверительный интервал

5555. x̅=7.8, n=10, σ=10. Given the standard deviation σ=10, the sample mean x̅в=7.8 and the sample size of a normally distributed feature n=10. Find the confidence interval for estimating the mathematical expectation with a given reliability γ=0.95.

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