HSS 2381 Final: summary Cheat sheet for FINAL EXAM NOTES

• School: University of Ottawa
• Department: Health Sciences
• Course: HSS 2381
• Professor: Eleanor Riesen

Document Summary

Steps in hypothesis testing: state the null and alternative hypotheses. H1: = 5 (non-directional hypothesis two tailed test) > 5 (directional hypothesis one tailed test: select the test statistic (t, specify level of significance ( =5) 3. decide on one-tailed versus two- tailed test (two) 6. compare test statistic to tabled value for appropriate df and . 7. decide whether to accept or reject the null hypothesis. Different = a very low probability of occurrence by chance if the mean truly is 5. 0. Average sampling error is the standard error of the difference (sed). The mean of a sampling distribution of the difference between means is equal to the difference between the two population means. Leven"s test: tests the null hypothesis that the variances in the two populations are equal. Homo: when sample size is the same, variance is typically the same. But when sample size is different, variances are often different.