11:512020 Applied Math cuiz # 2 5. A study was conducted on the effectiveness of en HPV (human papilloma virus) vaccine. The researchers re , women from 16 different centers across the country to participate in the study through advertisements on college and in the surrounding communities. To be eligible to participate in the study, the subjects had to meet the following a ' e ' (1) be a female between 16 and 23 years of age. (2) not be pregnant. (3) have no prior abnormal Pap smears. and (4) report to have had sexual relations with no more than five men. At each center. half of the participants were randomly selected to receive the HPV vaccine. and the other half received a placebo injection. After 16.5 months. the incidence of HPV infection was 3.6 per 100 woman-years at risk in the placebo group and 0 per 100 woman-years at risk in the vaccine group. Complete parts (a) and (b) below. (a) Describe as specically as possible the target population for the study. Choose the correct answer below. 0 A. The target population consisted of all people. 0 B. The target population consisted of women (particularly young women). 0 C. The target population consisted of the 2934 women who participated in the study. 0 D. The target population consisted of women (particularly older women). (b) Describe the sampling frame for the study. Choose the correct answer below. 0 A. The sampling frame consists of non-pregnant women of all ages who are not at high risk for HPV infection. 0 B. The sampling frame consists of non-pregnant women between 16 and 23 years of age who have no prior abnormal Pap smears and report to have sexual relations with no more than ve men. 0 C. The sampling frame consists of all women who are not at high risk for HPV infection. 0 D. The sampling frame consists of all women between 16 and 23 years of age who are not at high risk for HPV infection