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
|
Case Assignment
1. Briefly describe the procedure for testing hypotheses.
2. Formulate the null and alternative hypotheses.
3. Determine the test statistic that you will use.
4. Calculate the p-value. Show your work.
5. Discuss whether there is enough evidence to reject the null hypothesis.