Hello, I'm confused on this question is it possible for a tutor to help me on how to calculate the group mean, write the hypothesis in formula form, and I'm not sure how to calculate degrees of freedom or the critical value. I'm taking this class online my professor isn't giving enough information to help me figure this out. The question is posted below

H usiblackboardcom 22. The Pennybridge Police Departmentjust implemented body-wom cameras. They allowed us to conduct a study concerning the impact of BWCs on citizen complaints. One group of PPD ofcers were equipped with BWCs, while another group was not. After a year. we looked at how many complaints were led against these ofcers. Our hypothesis is that the BWC group would have less complaints after the year than the non-BWC group. Determine whether we accept or reject the null hypothesis at a signicance level of0.05. (1.5) mmeNwONIO Write the research hypothesis in formula form Do we perform a ztest. T-test for dependent means, or t-test for independent means? Why? BWC Group Mean Non-BWC Group Mean BWC Group N Non BWC Group N BWC Group Standard Deviation 1.95 Non-BWC Group Standard Deviation 2.07 Degrees of Freedom Critical Value Test Statistic Do we accept or reject the null hypothesis? Why or why not? 23. We asked a bunch of college students to get high with us and drive around. Actually, we invited these college to complete a police driving course (like those ones you see in the movies with the cones). First, we asked them to complete the course stone sober, and took note of every driving mistake that they made. Then we made them eat some l0mg THC candies om Magic Kitchen. We asked them to complete that same driving course and recorded their driving mistakes. We were unsure whether the students would make more or less driving mistakes, but we were pretty sure there would be some signicant difference. Determine whether we accept or reject the null hypothesis at a signicance level of 0.05. (1.5) Pre- Magic Kitchen. I Post- Magic Kitchen. s | s 6 S 8 7 7 6 6 4 7