Question

Attempts: Average: /10 ttestion Due th a bug in Googe Chrome. this page may not fuactioo correety Chcs heme learo 9. The t test for two independent samples - Two-tailed example Aa Aa Bullying," according to noted expert Dan Olweus, "poisons the educational environment and a every child." Bullying and victimization are evident as early as preschool, with the problem peaking 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 anxiety in a group of bullies bystanders using a 26-item, 3-point anxie that the variances of the anxiety scores are the same among bullies and bystanders. Olweus, "poisons the educational environment and affects the learning of in middle school and a group of ty scale. Assume scores on the anxiety scale are normally distributed and The group of 25 bullies scored an average of 25.3 with a sample standard deviation of 9 on the anxiety scale. The group of 23 bystanders scored an average of 20.5 with a sample standard deviation of 8 on the same scale. You do not have any presupposed assumptions about whether bullies or bystanders will be more anxious, so you formulate the null and alternative hypotheses as: Ho: Pbuilies Hbystanders0 H1: Hbulles Hbystancers Q You conduct an independent-measures t test. Given your null and alternative hypotheses, this is a test. To use the Distributions tool to find the critical region, you first need to set the degrees of freedom. The degrees of freedom is

Answer 1