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Solved: Exercises 37 through 40 refer to the following story: The manufacturer of a new
Chapter 14, Problem 39(choose chapter or problem)
Exercises 37 through 40 refer to the following story: The manufacturer of a new vitamin (vitamin X) decides to sponsor a study to determine the vitamins effectiveness in curing the common cold. Five hundred college students having a cold were recruited from colleges in the San Diego area and were paid to participate as subjects in this study. The subjects were each given two tablets of vitamin X a day. Based on information provided by the subjects themselves, 457 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.List four different problems with the study that indicatepoor design.
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QUESTION:
Exercises 37 through 40 refer to the following story: The manufacturer of a new vitamin (vitamin X) decides to sponsor a study to determine the vitamins effectiveness in curing the common cold. Five hundred college students having a cold were recruited from colleges in the San Diego area and were paid to participate as subjects in this study. The subjects were each given two tablets of vitamin X a day. Based on information provided by the subjects themselves, 457 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.List four different problems with the study that indicatepoor design.
ANSWER:Step 1 of 3
1. The participants or subjects in the case study were paid for their participation.
2. Subjects for the case study was only college students. They are not a representative cross section of the population.