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Mathematics, 14.04.2020 22:54 jamesnaquan132
Scores on a certain test are normally distributed with a variance of 14. A researcher wishes to estimate the mean score achieved by all adults on the test. Find the sample size needed to assure with 98% confidence that the sample mean will not differ from the population mean by more than 2 units.
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Scores on a certain test are normally distributed with a variance of 14. A researcher wishes to esti...
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