Задача N5605 теория вероятностей доверительный интервал

5605. The same device with the standard deviation of random measurement errors σ=40 m made 5 equally accurate measurements of the distance from the gun to the target. Find the confidence interval for estimating the true distance to the target with reliability γ=0.95; knowing the arithmetic mean of measurements equal to x̅v = 2000 m.

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