2021 Fall Hypothesis testing about a difference in population proportions between two groups 5. Kiara is studying the ef

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2021 Fall Hypothesis Testing About A Difference In Population Proportions Between Two Groups 5 Kiara Is Studying The Ef 1 (27.21 KiB) Viewed 122 times

2021 Fall Hypothesis testing about a difference in population proportions between two groups 5. Kiara is studying the effects of college experience on political ideology. She drew a sample of 400 Albany students and measured their political party identification. She found the proportions of sampled students who answered that they support for the Republican party. (16.5pts) Freshmen P = 0.46 N = 150 Seniors P = 0.48 N, 250 a) Using the significance level of .01, test the null bypothesis that proportion of freshmen supporting the Republican party is greater than or equal to that of Seniors. (Round all calculations to 3 decimal places) b) Is the difference between the difference in proportions observed between the samples statistically significant? Explain why, using the language of probability. c) What is your conclusion? Is there a relationship between the variables statistically significant? Interpret the results in terms of the original research question.