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.

Question

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?

Answer 1

256(trust me)

Answer 2

Variance = square of standard deviation = 16 * 16 = 256

(Just in case you don't trust Math.)

Answer 3

To find the variance on this questionnaire in the general population, we need to use the formula for variance. The formula for variance is as follows:

variance = standard deviation squared

Given that the standard deviation is 16, we can calculate the variance by squaring the standard deviation:

variance = 16^2 = 256

So, the variance on this questionnaire in the general population is 256.