section 11.5

I Question 1 E4 0J1 pt '0 2 8 98 G) Details The following data represent the seat belt usage in a car for smokers and nonsmokers. No Seat Belt Seat Belt Smoke 67 448 Do not Smoke 327 2187 *Source: Harris Poll What type of test would you use to determine if smoking habits are related to seat belt usage? 0 Test for Independence O Goodness of Fit 0 Test for Homogeneity Submit Question 0 Question 2 E/ 011 pt '0 2 8 98 G) Details A student wanted to know if M & Ms follow their stated distribution. Here is what the company claims: Color Percentage Brown 1 5% Yellow 12% Orange 20% Red 13% Green 16% Blue 24% A student takes a random sample of 600 M&Ms and finds: Color Number Brown 78 Yellow 84 Orange 144 Red 90 Green 120 Blue 90 What type of test would you use to test that M&M follows their stated distribution? 0 Test for Homogeneity O Goodness of Fit 0 Test for Independence Submit Question 0 Question 3 B on pt 0 2 8 98 G) Details The following data represent the level of happiness and level of health for a random sample of individuals from the General Social Survey. Health Excellent Good Fair Poor Very Happy 271 261 Pretty Happy 247 567 Not Too Happy 33 103 *Source: General Social Survey What type of test would you use to determine if happiness and health are related? 0 Goodness of Fit 0 Test for Homogeneity O Test for Independence Submit Question 0 Question 4 E4 on pt 0 2 8 98 G) Details Pain medications sometimes come with side effects. One side effect is dizziness. A researcher wanted to determine if some pain medications produced more or less dizziness than others. The results from his study are shown in the table below. Tordol Placebo Naproxen Tylenol Advil Dizziness 83 5 8 No dizziness 4063 382 337 What type of test would you use to determine if the proportion of people within each treatment group who experienced dizziness are the same? 0 Goodness of Fit 0 Test for 0 Test for Independence Homogeneity Submit Question 0 Question 5 E4 on pt '0 2 8 98 G) Details A student wanted to know if Skittles follow their stated distribution. The company claims that they distribute all 5 colors evenly. A student takes a random sample of 500 Skittles and finds: Color Number Green 75 Yellow 1 05 Orange 1 10 Red 1 15 Purple 90 What type of test would you use to test that Skittles follows their stated distribution? 0 Test for Independence O Goodness of Fit 0 Test for Homogeneity Submit Question O Question 6 Ed 011 pt '0 2 8 98 6) Details A researcher wanted to determine which method would help smokers quit. He divided a group of 183 test subjects into three groups. Group 1 would get "the patch", Group 2 would get a medication, and Group 3 would have no intervention. At the end of the study, this is what he found. Group 1 Group 2 Group 3 Did Not Quit 54 51 Quit *Source: Harris Poll What type of test would you use to determine if the proportion of people in each group who quit smoking was different ? 0 Test for Homogeneity 0 Test for Independence O Goodness of Fit Submit