A Population Mean Is to Be Estimated from the Sample

question 62

Multiple Choice

A population mean is to be estimated from the sample described. Round your answer to one decimal place if necessary. Assume that all confidence intervals use a 95% confidence level.
-Sample size = 3025, sample mean = 244, sample standard deviation = 80 What is the margin of error?

• A)2.9
• B)0.1
• C)1.5
• D)8.9

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