Question

The text reports the results of a test for the significance of the difference in average income for random samples of males and females. Males earned an average of about $17,000 more per year and the Z score computed in step 4 was 6.53. Given these results, which of the following is a reasonable conclusion?

a. There is no gender gap in income in the United States.
b. This difference is statistically significant but quite small.
c. The difference is not statistically significant and was probably caused by random chance.
d. The difference is statistically significant, large, and important.

Answer 1

The answer is letter D.

Step-by-step explanation:

The difference is statistically significant, large, and important.