Problem N5615 probability theory confidence interval

Sold 0
Refunds 0
Good feedbacks 0
Bad feedbacks 0

5615. In control tests, n=17 was determined x̅=3000 hours. Assuming that the lamp life is normally distributed σ=21 hours, determine the width of the confidence interval for the general average with reliability γ=0.98
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)