Table 12.23 shows the numbers of students in each of two classes, A and B, who passed and failed an examination given to both groups. Using the (a) 0.05 and (b) 0.01 significance levels, test the...

Table 12.23 shows the numbers of students in each of two classes, A and B, who passed and failed an examination given to both groups. Using the (a) 0.05 and (b) 0.01 significance levels, test the hypothesis that there is no difference between the two classes. Work the problem with and without Yates’ correction.