Question
Two investigators are interested in studying the health of men 18-24 years old in Baltimore City. Investigator A plans to take a random sample of
Two investigators are interested in studying the health of men 18-24 years old in Baltimore City. Investigator A plans to take a random sample of 100 men age 18-24 from Baltimore City. Investigator B will take a random sample of 1,000 such men. Both investigators will measure the waist size of men in their samples.
Which investigator is likely to estimate a narrower 95% confidence interval for the true mean waist size of all men 18-24 in Baltimore City?
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Mathematics for Economics and Business
Authors: Ian Jacques
9th edition
129219166X, 9781292191706 , 978-1292191669
