The study described below is a randomized comparative experiment. Describe the freatment, the freatment group, and the control group. 8. A medical researcher collects data about a certain medicine. She asks 10 patients to take the medicine and another 10 patients to take a placebo (a sugar pil known to have no effect) None of the patients knows which group he or she is in. At the end of 6 months, the group taking the medicine showed more improvement in their symptoms than the group taking the placebo. 9. A department store wants to increase its sales It assembled 100 of its best credit card customers and randomly divided them into two groups of 50. One group was allowed to use a special website for ordering goods and paying bills and the other group was not. At the end of six months, the group using the special website made 40% more purchases than the control group.

Question

The study described below is a randomized comparative experiment. Describe the freatment, the freatment group, and the control group. 8. A medical researcher collects data about a certain medicine. She asks 10 patients to take the medicine and another 10 patients to take a placebo (a sugar pil known to have no effect) None of the patients knows which group he or she is in. At the end of 6 months, the group taking the medicine showed more improvement in their symptoms than the group taking the placebo. 9. A department store wants to increase its sales It assembled 100 of its best credit card customers and randomly divided them into two groups of 50. One group was allowed to use a special website for ordering goods and paying bills and the other group was not. At the end of six months, the group using the special website made 40% more purchases than the control group.

Answer 1

8. In this study, the treatment is the administration of a certain medicine to the patients. The treatment group consists of the 10 patients who were given the medicine, while the control group consists of the other 10 patients who were given a placebo (a sugar pill known to have no effect). The purpose of the study is to compare the effectiveness of the medicine versus the placebo in improving the patients' symptoms.9. In this study, the treatment is the use of a special website for ordering goods and paying bills. The treatment group consists of the 50 customers who were allowed to use the special website, while the control group consists of the other 50 customers who were not allowed to use the website. The purpose of the study is to compare the impact of using the special website on the customers' purchasing behavior compared to the control group.

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