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For the following question(s) : 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.
26 What is the research hypothesis?
A) There will be no significant differences between the two populations.
B) The population of new fathers has a higher mean than the mean of the population of men in general.
C) The sample size will significantly affect the level of affection experienced.
D) The two populations (of men in general and of new fathers) have different variances.
Answer: B
-What is the standard deviation of the comparison distribution?
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