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Problem N5515 probability theory confidence interval
5515. x̅=67, n=379, σ=22 Find the confidence interval for estimating the mathematical expectation of a normal distribution with a reliability of 0.970, knowing the sample mean 67, sample size 379, and standard deviation 22.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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Discount for regular customers! If the total of your purchases from the seller
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