Answer Happy

Do the work (in a neat fashion) on this paper. Due on the day of the final exam. • Sample Size Problems: Just state the minimum sample size. • Confidence Intervals: State your result is a sentence, like "We are 95% confident that the is between & • Hypothesis Tests: Perform the appropriate hypothesis test, including all 5 steps. o Ho & H₁ O a O Test o Test Statistic/p-value o Decision about Ho/Conclusion about H₁ . If the necessary conditions are not met, use the appropriate alternative test. One Proportion - Binomial o o Two Proportion - Randomization Test for Two Proportions o One Mean-Sign Test o Paired Difference - Wilcoxon Signed Ranks o Two Mean Test-Mann Whitney o ANOVA-Kruskal Wallis 1) A doctor claims that less than 75% of the patients that he performs a knee replacement surgery on return to work in the first 3 months after the operation. A sample of 50 patients that had a knee replaced by the doctor showed that only 34 of them returned to work within 3 months of the surgery. Test the doctor's claim at the 0.05 level of significance.