Healthcare Case 4

Required Reading and Resources

a. Cook, A., Netuveli, G., & Sheikh, A. (2004). Chapters 5: Study design, Chapter 6: Combining students, Chapter 7: Managing data. In Basic skills in statistics: A guide for healthcare professionals (pp. 53-86). London, GBR: Class Publishing. eISBN: 9781859591291.

b. Norman, G. R., & Streiner, D. L. (2014). Section the second: Analysis of variance. Chapter 7: Comparing two groups. In Biostatistics: The bare essentials [4th ed., e-Book]. Shelton, Connecticut: PMPH-USA, Ltd. eISBN-13: 978-1-60795-279-4.

c. Norman, G. R., & Streiner, D. L. (2014). Section the third: Regression and correlation. Chapter 13: Simple regression and correlation. In Biostatistics: The bare essentials [4th ed., e-Book]. Shelton, Connecticut: PMPH-USA, Ltd. eISBN-13: 978-1-60795-279-4. Available in the Trident Online Library EBSCO eBook Collection.

d. Norman, G. R., & Streiner, D. L. (2014). Section the fourth: Non-parametric statistics. Chapter 21: Tests of significance for categorical frequency data. In Biostatistics: The bare essentials [4th ed., e-Book]. Shelton, Connecticut: PMPH-USA, Ltd. eISBN-13: 978-1-60795-279-4. Available in the Trident Online Library EBSCO eBook Collection.

HOMEWORK 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:

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.