In a clinical trial of a drug used to help subjects stop smoking, 782 subjects w
ID: 2934904 • Letter: I
Question
In a clinical trial of a drug used to help subjects stop smoking, 782 subjects were treated with 1 mg doses of the drug. That group consisted of 30 subjects who experienced nausea. The probability of nausea for subjects not receiving the treatment was 0.0094. Complete parts (a) through (c). The mean is 7.4 people. (Round to one decimal place as needed.) The standard deviation is 2.7 people (Round to one decimal place as needed.) b. Based on the result from part (a), is it unusual to find that among 782 people, there are 30 who experience nausea? Why or why not? A. It is not unusual because 30 is within the range of usual values B. It is not unusual because 30 is outside the range of usual values. C. It is unusual because 30 is outside the range of usual values. D. It is unusual because 30 is within the range of usual values. c. Based on the preceding results, does nausea appear to be an adverse reaction that should be of concern to those who use the drug? 0 A. The drug does not appear to be the cause of any nausea. reaction that does not occur very often. that occurs very often B. The drug does appear to be the cause of some nausea. Since the nausea rate is still quite low (about 4%), it appears to be an adverse C. The drug does appear to be the cause of some nausea. Since the nausea rate is quite high (about 4%), it appears to be an adverse reactionExplanation / Answer
Number of people treated = 782
Number of people experiencing nausea = 30
Probability of person who was treated having nausea = 30 / 782 = 0.0384.
=> Percentage of a people who had nausea after being treated = 3.84% < 4%.
The correct answer is B as the rate is still quite low.