11/5/2020 Applied Math Quiz # 2 4. The manufacturer of a new vitamin (vitamin X) decides to sponsor a study to determine the vitamin's effectiveness in curing the common cold. Five hundred out of the 50,000 college students in a large city were paid to participate as subjects in this study. All the participating subjects were suffering from a cold at the start of the study. The subjects were each given two tablets of vitamin X a day. Based on information provided by the subjects themselves, 457 out of the 500 subjects were cured of their colds within 3 days. (The average number of days a cold lasts is 4.87 days.) As a result of this study, the manufacturer launched an advertising campaign based on the claim that "vitamin X is more than 90% effective in curing the common cold." Complete parts (a) through (c) below. (a) Describe as specifically as you can the target population for the study. Choose the correct answer below. O A. The target population consisted of anyone in the city who could have a cold and would consider buying vitamin X. O B. The target population consisted of all the college students in the city who had a cold at the time. O C. The target population consisted of anyone who could have a cold and would consider buying vitamin X. O D. The target population consisted of 500 college students who currently had colds. (b) Describe the sampling frame for the study. Choose the correct answer below. O A. The sampling frame consisted of anyone in the city who could have a cold and would consider buying vitamin X. O B. The sampling frame consisted of all college students who took vitamin X. O C. The sampling frame consisted of 500 college students who currently had colds. O D. The sampling frame consisted of all the college students in the city who had a cold at the time. (c) Describe the sample used for the study. Choose the correct answer below. O A. The sample consisted of 50,000 college students. O B. The sample consisted of the 500 students that took vitamin X. O C. The sample consisted of all the college students in the city who had a cold at the time. O D. The sample consisted of anyone in the city who could have a cold and would consider buying vitamin X