Question

In: Statistics and Probability

Q1.Must write the hypotheses, analyze and state what your conclusions are and how you have drawn...

Q1.Must write the hypotheses, analyze and state what your conclusions are and how you have drawn your conclusions. Also, state and check your assumptions.

Q2.explain the procedure of getting answers step-by-step.

Problem 1 : A research study was conducted to examine the clinical efficiency of a new antidepressant. Depressed patients were randomly assigned to one of three groups: a placebo group, a group that received a low dose of the drug, and a group that received a moderate dose of the drug. After four weeks of treatment, the patients completed the Back Depression Inventory. The higher the score, the more depressed the patient. The data is presented below. Compute the appropriate test.

Placebo

Low Dose

Moderate Dose

38

22

14

47

19

26

39

8

11

25

23

18

42

31

5
  1. What would be the null hypothesis in this study?
  2. What would be the alternate hypothesis?
  3. What probability level did you choose and why?
  4. What is your?
  5. Is there a significant difference between the groups (JUSTIFY)!?
  6. If there is a significant difference, where specifically are the differences?
  7. Interpret your answer.

Solutions

Expert Solution

orchestra answered 2 years ago
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