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 two distribution means are being compared to each other.
If the comparison distribution is the new fathers, mean = 64.5. If the comparison distribution is for the general population, mean = 60.
To find the mean of the comparison distribution, we need to consider the population mean and the sample mean of the group of new fathers.
Given that the mean degree of affection for the general population is 60, and the mean of the sample of new fathers is 64.5, the mean of the comparison distribution can be estimated as the mean of the sample of new fathers.
Therefore, the mean of the comparison distribution is 64.5.