REFERENCE: Determining sample size(mean) Q. population IQ scores are randomly di

Question

REFERENCE: Determining sample size(mean) Q. population IQ scores are randomly distributed with a meanof 100 and a standard deviation of 15. A survey is to be done onthe IQ scores of students who are majoring in computer studies.what should be the sample size of the survey if we want a 90%confidence level and a maximum error of estimate of 2 I.Q. pointswhat should be the sample size? REFERENCE: Determining sample size(mean) Q. population IQ scores are randomly distributed with a meanof 100 and a standard deviation of 15. A survey is to be done onthe IQ scores of students who are majoring in computer studies.what should be the sample size of the survey if we want a 90%confidence level and a maximum error of estimate of 2 I.Q. pointswhat should be the sample size?

Explanation / Answer

=1.632 502 / 22 = 1660 where Z=1.63 sd=50 D=2 where Z=1.63 sd=50 D=2

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