Question

6. Violence and lack of discipline have become major problems in schools in the United States A random sample of 300 adults was selected, and they were asked if they favor giving more freedom to schoolteachers to punish students for violence and lack of discipline. The two-way classification of the responses of these adults is presented in the following table No Opinion Total In favor Against 12 Men 93 70 175 Women 87 30 8 125 Total 180 100 20 300 Suppose conclude that the two attributes, gender and opinions of adults, are dependent at the 1% significance level we want to conduct a test to determine if the sample provides sufficient information to What are the appropriate degrees of freedom for this test? (3 points)

Answer 1

444 Ans:- Tn the 1oUouλag table Tn favoe Agaiust No opinion Tatal Men 93 70 12 Stp Women 87 2S 30 Total 1 80 20 Joo 300 There ate Number of Number of columnu- 3 So, To test of independlency We know &Ows =2 thal Test statistic is chi- square () and degeees of feedom for this test is peoduct d.f. -(No. of as No. of - 1) Rows calumns 2-1) (3-1) -(1)x(2) = 2 Appeopeiate olegeees of feedom Thank you. Please,ike the answet.