Displayed below are the survival times in months since diagnosis for 12 AIDS patients suffering from concomitant esophageal candidiasis, an infection due to candida yeast, and cytomegalovirus, a herpes infection that can cause serious illness. 0.5+ 1 1 1 2 5+ 8+ 9 10+ 12+ 13 15 Use the Kaplan-Meier product-limit method to estimate the survival function at 13 months. Assume S ( 9 ) = 0. 5091. 0.255 0.500 0.889 0.727Displayed below are the survival times in months since diagnosis for 12 AIDS patients suffering from concomitant esophageal candidiasis, an infection due to candida yeast, and cytomegalovirus, a herpes infection that can cause serious illness. 0.5+ 1 1 1 2 5+ 8+ 9 10+ 12+ 13 15 Use the Kaplan-Meier product-limit method to estimate the survival function at 13 months. Assume S ( 9 ) = 0. 5091. 0.255 0.500 0.889 0.727