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August 21, 2014

Homework Help: Statistics

Posted by stat on Tuesday, October 6, 2009 at 8:54pm.

A researcher interested in relationships developed a questionnaire that measures the degree of affection adult men feel for their fathers. She has found that for the general population the distribution is skewed to the right, the mean degree of affection is 60, and the standard deviation is 16. The researcher now is wondering if men who themselves have just become new fathers will score higher on the scale than men in general. She samples a group of 100 new fathers and finds that their mean is 64.5.

What is the variance on this questionnaire in the general population?

16
320
256
500

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