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Population mean a confidence interval extending

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A test has a normal distribution with standard deviation 25.82 points. A random sample of 14 test scores from the current group of applicants had a mean score of 74.41 points. A statistician found for the population mean a confidence interval extending from 63.4379 to 85.3821 points. What's the confidence level of this interval.

Reference no: EM132404073

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