Determine whether the given conditions justifyusing E=Z/2/n for the margin of er

Question

Determine whether the given conditions justifyusing    E=Z/2/n    for the margin of errorwhen finding a confidence interval estimate of the population mean.A simple random sample has size
n=30 and =12. Can E=Z/2 /n be used for margin of error? Please pick one of the answersbelow. a) Yes - based on sample size b) Yes - based on standard deviation c) No - based on sample size d) Need more information to answer. Determine whether the given conditions justifyusing    E=Z/2/n    for the margin of errorwhen finding a confidence interval estimate of the population mean.A simple random sample has size
n=30 and =12. Can E=Z/2 /n be used for margin of error? Please pick one of the answersbelow. a) Yes - based on sample size b) Yes - based on standard deviation c) No - based on sample size d) Need more information to answer.

Explanation / Answer

a) yes- based on samplesize It is 30 or larger so the central limit theorem will work andthus you can use the equation.

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