Question 19 3.0303 points Save Answer In a study of heart disease in male federal employees, researchers classified 160 volunteer subjects according to their socioeconomic status (SES) and their smoking habits. There were categories of SES: high, middle, and low. Individuals were asked whether they were current smokers, former smokers, or had never smoked, producing three categories for smoking habits as well. Here is the two-way table that summarizes the data below. Do the data provide sufficient evidence to indicate that there is a significant association between smoking habits and socioeconomic status? Test using 0.05 significance level. Question: Calculate the degree of freedom. SES Smoking High Middle Low Current 10 20 20 Former 20 10 20 Never 30 20 10Question 18 3.0303 points Save Answer In a study of heart disease in male federal employees, researchers classified 160 volunteer subjects according to their socioeconomic status (SES) and their smoking habits. There were categories of SES: high, middle, and low. Individuals were asked whether they were current smokers, former smokers, or had never smoked, producing three categories for smoking habits as well. Here is the two-way table that summarizes the data below. Do the data provide sufficient evidence to indicate that there is a significant association between smoking habits and socioeconomic status? Test using 0.05 significance level. Question: what is the most appropriate test? SES Smoking High Middle Low Current 10 20 20 Former 20 10 20 Never 30 20 10 Two sample independent t test Two sample dependent t test Chi square test of goodness of fit K IS Chi square test of independence