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Unformatted text preview: 2 of 11 1.1 Review 15. confidence interval for difference in proportions 16. one sample mean test 17. two independent sample mean test 18. match pair test 19. one sample proportion test 20. two sample proportion test 21. linear correlation coefficient & test 22. regression For each situation below, which method is most applicable? • If it’s a hypothesis test, what are the null and alternative (state in words and mathematically). • If it’s a graphical method, describe what you would be looking for. Question 1 . A news reporter wants to conduct a poll to determine the propor tion of support for Hillary Clinton. Question 2 . A researcher wants to determine if there is a relationship between height and income. Question 3 . A statistics professor decides it is too much work to give a final exam and decides to predict a student’s final exam grade based on a student’s midterm grade (using past semester data). Question 4 . A researcher wants to determine if the incidence of Down syndrome in males and females is the same. Anthony Tanbakuchi MAT167 Tests of independence and homogeneity 3 of 11 1.2 Introduction Question 5 . We previously looked at correlation and regression which dealt with what type of data? (quantitative or categorical) Example 1 . A group of 276 healthy men and women were grouped according to their number of relationships. They were then exposed to a virus that caused colds. The data is summarized in the table below. Does the data providecolds....
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 Spring '11
 Tanbakuchi
 Statistics, Correlation, Correlation Coefficient, Null hypothesis, Statistical hypothesis testing, Pearson's chisquare test

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