Question:

A company is conducting a study to assess the effectiveness of a new drug in treating a certain medical condition. The study involves administering the drug to a randomly selected group of patients and comparing their outcomes with those of a control group that receives a placebo. The company wants to determine whether the drug significantly improves the condition compared to the placebo.

In the study, 200 patients are randomly assigned to each group. After a specified period of time, the researchers collect data on the number of patients in each group who show improvement in their condition. The results are as follows:

Drug Group: 150 patients show improvement Placebo Group: 120 patients show improvement

To determine whether the difference in improvement rates between the two groups is statistically significant, the company decides to conduct a hypothesis test using a significance level of 0.05. Which of the following statements is correct?

A) The drug is significantly effective because more patients in the drug group showed improvement compared to the placebo group. B) The drug is not significantly effective because the improvement rate in the drug group is not 100%. C) The drug is significantly effective because the difference in improvement rates between the two groups is statistically significant. D) The drug is not significantly effective because the improvement rate in the drug group is not greater than the improvement rate in the placebo group.

Please select the most appropriate option (A, B, C, or D) that correctly interprets the results of the hypothesis test and provides a valid conclusion based on the given information.

NO USE CHATGPT Wrong Answer I will dislike