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? (Points :1)
60/100 = .60
60
64.5/100 = .645
64.5
60
To find the mean of the comparison distribution, you need to divide the sum of all the scores by the sample size. In this case, the researcher is comparing the scores of new fathers to the general population.
Given:
Mean degree of affection for the general population = 60
Sample size for the general population = 100
To find the mean of the comparison distribution, divide the total sum of scores for the general population by the sample size:
Mean of the comparison distribution = 60 / 100 = 0.60