The following table shows the results of a study on smoking and three illnesses. We are interested in determining if the proportions smokers in the three categories are different from each other. Emphysema Heart problem Cancer Total Smoker 150 70 100 320 Non-smoker 50 130 500 680 Total 200 200 600 1000 The degrees of freedom for the test are (A) 2+3-2-3 (B) 3-1-2 (C) 2x3-1-5 (D) 2+3-1-4

The following table shows the results of a study on smoking and three illnesses. We are interested in determining if the proportions smokers in the three categories are different from each other. Emphysema Heart problem Cancer Total Smoker 150 70 100 320 Non-smoker 50 130 500 680 Total 200 200 600 1000 The degrees of freedom for the test are (A) 2+3-2-3 (B) 3-1-2 (C) 2x3-1-5 (D) 2+3-1-4

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 8PPS

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