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 H₂₁ ● 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
4) The president of a college wants to determine the mean number of units that college students take per semester. How large of a sample is required in order to be 99% sure that a sample mean will be off by no more than 1.25 units? An initial study suggested that the standard deviation is approximately 2.1 units.