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4 1 point 4 In the United States, there is a strong relationship between education and smoking: well- educated people are less likely to
4 1 point 4 In the United States, there is a strong relationship between education and smoking: well- educated people are less likely to smoke. Does a similar relationship hold in France? To find out, researchers recorded the level of education and smoking status of a random sample of 459 French men aged 20 to 60 years. The two-way table below displays the data. Smoking Status Nonsmoker Former Moderate Heavy Education Primary School Secondary School University 56 37 53 54 43 28 41 27 36 36 32 16 What is the expected value for a moderate smoker who has graduated from University? (A) 30.135 (B) 24.34 (C) 36 (A) coding (B) reading the dictionary (D) 59.481 (E) 34 (C) throwing calculators (D) dancing (E) doing burpees 5 1 point 5 Cocaine addicts need cocaine to feel any pleasure, so perhaps giving them an antidepressant drug will help. A three-year study with 72 chronic cocaine users compared an antidepressant drug called desipramine with lithium (a standard drug to treat cocaine addiction) and a placebo. One-third of the subjects were randomly assigned to receive each treatment. Here are the results: Drug administered Relapsed? Desipramine Lithium Placebo Yes 10 18 20 No 14 6 4 What is the p-value for a chi-square test for homogeneity? (A) 0.0401 (A) cat ears (B) 0.032 (C) 0.067 (D) 0.0052 (B) ball gowns (C) speedos (D) monkey costumes (E) 0.0000105 (E) clown shoes
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