Drawing Inferences about Population Means and Porportions

Drawing Inferences about Population Means and Porportions

Case 4: Drawing Inferences about Population Means and Porportions

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? Drawing Inferences about Population Means and Porportions

 

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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:

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. Drawing Inferences about Population Means and Porportions

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