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Problem N5518 probability theory confidence interval
5518. x̅=72, n=214, σ=23 Find the confidence interval for estimating the mathematical expectation of a normal distribution with a reliability of 0.970, knowing the sample mean 72, sample size 214, and standard deviation 23.
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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