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Sample exam (Chi-square)

# Sample exam (Chi-square) - Sample Exam(Final Chi-Square...

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1 Sample Exam (Final) Chi-Square Name_____________________ Problem 1 The table below summarizes results from a study of males aged 15 and older living in the Minhang District of China. Using a 0.10 significance level, test the claim that smoking is independent of education level. What do you conclude about the relationship between smoking and education in China? Primary School Middle School College Smoker 606 1,234 100 Never smoked 205 505 137 1. How many smokers were in middle school at the time of the study? A) 205 B) 1,234 C) 505 D) 1,739 2. The appropriate degrees of freedom for the chi-square statistic is 3. How many males were in College at the time of the study? 4. The expected frequencies of male smokers who were in middle school was 5. The null hypothesis is which of the following? A) Smoking is dependent on education level. B) Smoking is independent of education level. C) The probability of smoking is independent of the probability of attending school. D) All of the above.

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Sample exam (Chi-square) - Sample Exam(Final Chi-Square...

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