Module 4 – Case
DRAWING INFERENCES ABOUT POPULATION MEANS AND PROPORTIONS
Case Assignment
A researcher conducts a test on the effectiveness of a cholesterol treatment on 114 total subjects. Assuming the tails of distributions are normal distribution, is there evidence that the treatment is effective?
Cholesterol Decreased
No Cholesterol Decrease
Total
Treatment
38
18
56
No treatment
30
28
58
Total
68
46
114
Submit a (2-3 pages) paper before the end of the module that:
- Briefly describe the procedure for testing hypotheses.
- Formulate the null and alternative hypotheses.
- Determine the test statistic that you will use.
- Calculate the p-value. Show your work.
- Discuss whether there is enough evidence to reject the null hypothesis.
Assignment Expectations
Assessment and Grading: Your paper will be assessed based on the performance assessment rubric that is linked within the course. Review it before you begin working on the assignment.
