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Question
Dr. Sherri Brock's diet pills are supposed to cause significant weight loss. The following table shows the results of a recent study where some individuals took the diet pills and some did not.| Diet Pills | No Diet Pills | Total | |
| No Weight Loss | 80 | 20 | 100 |
| Weight Loss | 100 | 100 | 200 |
| Total | 180 | 120 | 300 |
We want to see if losing weight is independent of taking the diet pills.
a. Compute the test statistic.
b. Using the p-value approach at 95% confidence, test to determine if weight loss is independent on taking the pill.
c. Use the critical method approach and test for independence.
Answer
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