Problem N5413 probability theory confidence interval
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- x̅=18.61, n=81, σ=6. Given the standard deviation σ=6 of a normally distributed random variable X, sample mean x̅=18.61, sample size n=81. Find confidence intervals for estimating the unknown mathematical expectation a with a given reliability γ=0.95.
Additional information
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)