Confidence interval estimate for the average score


The standard deviation of test scores on a certain achievement test is 11.3. If a random sample of 81 students had a sample mean score of...

The standard deviation of test scores on a certain achievement test is 11.3. If a random sample of 81 students had a sample mean score of 74.6, find a 90 percent confidence interval estimate for the average score of all students.

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Basic Statistics: Confidence interval estimate for the average score
Reference No:- TGS0116012

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