Question 7 (1 point) Suppose a psychiatrist developed a non-conventional therapy for those who suffer from Schizophrenia (a common mental disorder that affects one's ability to think, feel, and behave clearly). In order to determine whether it is effective or not, he randomly selected 25 Schizophrenic patients, and recorded the number of episodes the subjects experience during the three-month period before and after the therapy. The average difference in the number of episodes before and after the therapy is 3.75 with a standard deviation of 6.89. The most appropriate test for determining the effectivity of the therapy in reducing the number of episodes is two-sample independent t-test for the difference in means. Previous Page Next Page Page 7 0f 11 Question 9 (1 point) Let us say you want to determine if there is a significant difference between the weight lost by people who underwent lowfat and low-carb diets. So, you conducted a 3-month experiment on 100 randomly selected people on each diet type. The following table summarizes the results: . . Standard Diet Sample Size (n) Mean deviation Low-fat 100 10.5 lbs 12.5 lbs Low-carb 100 16.5 lbs 10.2 lbs For your test of significance at 0( = 5%, which of the following are the appropriate set of hypotheses? most For your test of significance at