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Get Full Access to Elementary Statistics - 12 Edition - Chapter 11 - Problem 7
Get Full Access to Elementary Statistics - 12 Edition - Chapter 11 - Problem 7

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# Solution: Questions 610 refer to the sample data in the following table (based on data ISBN: 9780321836960 18

## Solution for problem 7 Chapter 11

Elementary Statistics | 12th Edition

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Problem 7

Questions 610 refer to the sample data in the following table (based on data from the Pew Research Center). Randomly selected subjects were asked about the use of marijuana for medical purposes. Assume that we want to use a 0.05 significance level to test the claim that response to the question is independent of gender. In Favor Oppose Don't Know Men 538 167 29 Women 557 186 32 What distribution is used to test the stated claim (normal, t, F, chisquare, uniform)?

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Inference for two independent groups: - This means deciding if there’s a statistically significant relationship between explanatory and response variable - If response variable is quantitative, the question involves means o Ex. How does average childhood weight compare between generations - If the response variable is categorical, the question involves proportions o Ex. Does the smoking rate differ between genders Summary of inference for 2 independent population means: - Hypotheses: H 0μ 1μ =2 H A μ1−μ 2¿0 - Sample Statistic: ´ ´ X 1X 2

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##### ISBN: 9780321836960

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