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Problem N5363 probability theory confidence interval

Problem N5363 probability theory confidence interval

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Product description

  • x̅=70, n=236, σ=21. Find the confidence interval for estimating the mean of a normal distribution with a reliability of 0.920 given a sample mean of 70, a sample size of 236, and a standard deviation of 21.

Additional information

Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)