HP 340Lg Lecture Notes - Lecture 16: Test Statistic, Mann–Whitney U Test, Wilcoxon Signed-Rank Test

• School: USC
• Department: Health Promotion and Disease Prevention Studies
• Course: HP 340Lg
• Professor: Choudhury

Document Summary

P: proportion of the population with one of two outcomes. Q: 1-p: proportion of the population with the other outcome. Iv. xi = 1 if the subject has the outcome of interest xi = 0 if the subject does not have the outcome of interest: estimate p as: p x n i x i. 1 n: estimate se of phat as: s p pq n. 2 pq n: ci of phat, the proportion of usc undergrads who believe usc will break into the top 10 in the ncaa ranking is phat%. 0 0 n: test statistic, example: we estimated that 89. 3% of usc undergrads believe usc will break into the top 10 in the ncaa ranking. However, only 13% of all us undergrads believe usc will break into the top 10. Usc will break into the top 10 in the ncaa rankings is statistically significantly different from that of us undergrads (p = 5. 0 10-85)