Quiz2Soln

# Quiz2Soln - STA 3024 Introduction to Statistics 2 Quiz 2...

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Unformatted text preview: STA 3024 Introduction to Statistics 2 Quiz 2 with Solution Problem 1 (textbook problem 3.8a) A General Social Survey question asked, “Do you believe in heaven?” and “Do you believe in Hell?” Among the answers, 833 subjects said “Yes” to both questions, 160 said “No” to both, 125 said “Yes” to heaven but “No” to Hell, and 2 answered “No” to heaven but ‘Yes” to hell. Construct a contingency table (no expected counts needed). Solution Heaven Hell Yes No Yes 833 2 No 125 160 Problem 2 The Marist Institute for Public Opinion conducted a poll of 1014 adults, 48% of whom were men. The poll results show that 12% of the men and 33% of the women fear flying. a) Construct a contingency table with expected counts that summarizes the data in the form of frequency counts. (Note: when converting from percentage to integer count, use the closest integers that yield the stated percents) b) Use a 0.05 significance level to test the claim that gender is independent of the fearb) Use a 0....
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Quiz2Soln - STA 3024 Introduction to Statistics 2 Quiz 2...

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