Problem N5541 probability theory confidence interval
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- x̅=25.32, n=49, σ=7. The standard deviation σ=7 of a normally distributed random variable X, the sample mean x̅v=25.32, and the sample size n=49 are given. Find the confidence interval for estimating the unknown mathematical expectation a with a given confidence probability γ=0.95.
Additional information
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)