A therapist who works with extremely argumentative individuals has a hypothesis that they are less verbally abusive during their initial therapy session with him when he wears a tie. To test his hypothesis, he performs the following experiment. At his initial sessions with 5 individuals, he wears a tie, and at his initial sessions with 8 individuals, he does not wear a tie. Each initial session is videotaped, and independent coders count the number of insults made during the session. The observed number of insults in sessions with a tie are: 19, 12, 10, 13, 13 The observed number of insults in sessions without a tie are: 15, 17, 22, 18, 30, 13, 13, 18H. What is the appropriate conclusion? (Please choose ALL answers necessary to draw a complete conclusion) Significantly more insults were exchanged when the tie was worn. Accept the alternative hypothesis. Reject the null hypothesis. Fail to reject the null hypothesis. There is no statistically significant effect of wearing a tie. Significantly more insults were exchanged when the tie was not worn