A pharmaceutical company investigated a drug to treat pain associated with arthritis. The company examined differences in effectiveness for males versus females. Males reported higher pain scores (M = 18) than did females (M = 15). An independent-samples t test ( = .05) resulted in an obtained value of t(8) = 1.08, p = .31. What conclusion can the drug company make? Group of answer choices Reject the null hypothesis and conclude that the drug affects men and women differently Fail to reject the null and conclude there is not enough evidence to say that the drug affects men and women differently. Fail to reject the null and conclude that the drug affects men and women differently Reject the null and conclude there is not enough evidence to say that the drug affects men and women differently