Sample size problems: Just state the minimum sample size Confidence intervals: state your result is a sentence, like "we are 95% confident that ? Is between blank and blank " Hypothesis tests: perform the appropriate hypothesis test, including all 5 steps. 1. Ho & H1 2. a= 3. Test 4. Test statistic and p-value 5. Decision about H0/ conclusion about H1 If the necessary conditions are not let, use the appropriate alternative test. 1. One Proportion- Binomial 2. Two proportion- randomization test for two proportions 3. One mean - sign test 4. Paired difference- Wilcoxon Signed Ranks 5. Two mean test- Mann Whitney 6. Anova- Kruskal Wallis 20) Here are the scores of a randomly selected Math 200, Math 230, and Math 21 students on their final exams. MATH 200: 38, 51, 59, 70, 82, 86, 99 MATH 230: 65, 70, 75, 80, 80, 84, 90, 94 MATH 21: 92, 92, 93, 94, 95, 95, 96, 98, 100 Test the claim that the mean final exam score is the same for all three classes at the 0.04 level of significance