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 mean of the comparison distribution?
The comparison distribution refers to the distribution of scores that you would expect to see if there were no difference between the two groups being compared. In this case, the two groups are the general population and the group of new fathers.
To determine the mean of the comparison distribution, we need to use the information provided about the general population's distribution. According to the information given, for the general population, the mean degree of affection for fathers is 60.
Therefore, the mean of the comparison distribution is also 60. This means that if there were no difference between the general population and the group of new fathers, we would expect the mean degree of affection for the new fathers to be around 60.
With the information provided, the best estimate is 64.5.
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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 research hypothesis?