Two pathologists each analyzed coded material from same 100 tumors and classified the material as malignant or benign. Pathologist. Aound that 18 are malignant and pathologist A found that 18 are malignant and pathologis B found 10 malignant cases. Both pathologist aggreed on eight cases as malignant. The investigator conduction study is interested in finding the extent to which the pathologists differs in their assessments of tumor material. Form the appropriate 2 by 2 table and test null hypothesis of no difference at 0.05 signigicance level.