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
14) A 1970 study showed that of American married-couple families, 43% had no children, 18% had one child, 18% had two children and 21% had three or more children. A recent survey of 500 American married-couple families revealed that 267 had no children, 87 had one child, 96 had two children and 50 had three or more children. At the 0.01 level of significance, test the claim that the 1970 proportions are no longer valid.