Is there a sentencing difference for the same crime as a function of gender? Agroup of men and women, all having committed the same crime, were compared on the length of sentence handed down by a certain judge. The results (in months) follow:

Men: 18, 23, 20, 15, 20, 28, 16, 22, 20, 18.

Women: 12, 15, 8, 10, 13, 4, 15, 14, 6, 3.

a. Do you reject the null hypothesis?

b. Is there a significant difference in the length of sentencing between men and women?

c. What type of research is this, experimental or post facto?

d. Identify both the IV and DV.