The records of all patients over 50 years of age with gastric ulcerations, who were autopsied at Boston City Hospital between 1940 and 1950, were examined. The following data classify 211 persons, according to site of ulcer versus malignancy status: Site of Ulcer Prepyloric Body Cardia Total Malignancy Status Benign Malignant Total 87 34 121 52 19 71 11 8 19 150 61 211 Site of ulcer has been widely considered to be associated with malignancy status, but the authors conclude from the above data, "ulcer site is of little differential value in diagnosis". Perform a test to decide whether there is any association between site of ulcer and malignancy status. Do you consider the above conclusion justified?