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Determine the sample size required to estimate the average score on a standardized test within 9...

Determine the sample size required to estimate the average score on a standardized test within 9 points of the true mean with 98% confidence. Suppose s = 16 based on previous studies
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Answer #1

We need to determine the sample size required to estimate the average score on a standardized test within 9 points of the true mean with 98% confidence.

It is given that

s=16

Margin of error, E=9

We have the general form for margin of error as

Required sample size=17.

Please upvote my answer if you find it helpful. Thanking you.

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