Designing a Study Assignment Example | Topics and Well Written Essays - 250 words

Designing a Study - Assignment Example To test the hypothesis, the Wilcoxon signed rank tests would be the fitting test. This test examines whether the data available supports the assertion that a prolonged daily exercise length implies a faster rate of weight loss. The test has been used previously in similarly befitting roles. (Han et al. 2011) notes: We used two-sided Wilcoxon rank sum tests for differences in location for these variables as well as for age and years of education. To carry out the test, the researcher needs to calculate the differences in recorded weights before and after the study period. All weight losses will be noted with a plus sign and all gains by a minus sign. Because the positive results (those with plus signs) are the center of our study, we assign them the title k-observed, denoted as kobs. Then using the value of the smallest integer kÃŽ ± we shall calculate the rejection region for kobs. We then observe whether our kobs is contained in R, that is without the boundaries of the rejection region. If kobsЄR, we fail to reject the null hypothesis. Let us put our R at 4, just for illustration. If kobs=3, then we fail to reject the H0 owing to the earlier explanation that kobsЄR. Han, X., Rozen, S., Boyle, S. H., Hellegers, C., Cheng, H., Burke, J. R†¦Ã¢â‚¬ ¦, Kaddurah-Daouk, R. (2011). Metabolomics in Early Alzheimer’s Disease: Identification of Altered Plasma Sphingolipidome Using Shotgun Lipidomics. Lipidomics in Alzheimer’s Disease. Vol 6. Issue 7. p. 7. Nishiumi, S., Kobayashi, T., Ikenda, A., Yoshie, T., Kibi, M., Izumi, Y.,†¦..Yoshida, M. (2012). A Novel Serum Metabolomics-Based Diagnostic Approach for Colorectal Cancer. Metabolomics for Colorectal Cancer. Vol. 7, issue 7. p. 4. Plichta, S. B., Kelvin, E. Munros Statistical Methods for Health Care Research. Statistical Methods for Health