Problem: The group of 30 bullies scored an average of 21.5 with a sample standard deviation of 10 on the depression scale. The group of 27 victims scored an average of 25.8 with a sample standard deviation of 9 on the same scale. You do not have any presupposed assumptions about whether bullies or victims will be more depressed, so you formulate the null and alternative hypotheses as:6. The t test for two independent samples - Two-tailed example "Bullying," according to noted expert Dan Olweus, "poisons the educational environment and affects the learning of every child." Bullying and victimization are evident as early as preschool, with the problem peaking in middle school. Suppose you are interested in the emotional well-being of not only the victims but also bystanders, bullies, and those who bully but who are also victims (bully-victims). You decide to measure depression in a group of bullies and a group of victims using a 26-item, 3-point depression scale. Assume scores on the depression scale are normally distributed and that the variances of the depression scores are the same among bullies and victims. The group of 30 bullies scored an average of 21.5 with a sample standard deviation of 10 on the depression scale. The group of 27 victims scored an average of 25.8 with a sample standard deviation of 9 on the same scale. You do not have any presupposed assumptions about whether bullies or victims will be more depressed, so you formulate the null and alternative hypotheses as: Need Assignment Help?