9 A certain drug is found to be helpful for 70% of patients who take it. Two research teams are attempting to improve its effectiveness by adjusting the delivery system for the drug. Both conduct random trials to test the effectiveness of their changes. Team A runs a trial with 50 patients, of whom 45 show improvement using the drug. Team B runs a trial with 90 patients, of whom 74 show improvement. Use the mean and standard deviation of the two trials to decide which adjustment shows stronger evidence of an improvement.
9 A certain drug is found to be helpful for 70% of patients who take it. Two research teams are attempting to improve its effectiveness by adjusting the delivery system for the drug. Both conduct random trials to test the effectiveness of their changes. Team A runs a trial with 50 patients, of whom 45 show improvement using the drug. Team B runs a trial with 90 patients, of whom 74 show improvement. Use the mean and standard deviation of the two trials to decide which adjustment shows stronger evidence of an improvement.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
![9 A certain drug is found to be helpful for 70% of patients who take it. Two research teams are attempting to
improve its effectiveness by adjusting the delivery system for the drug. Both conduct random trials to test the
effectiveness of their changes. Team A runs a trial with 50 patients, of whom 45 show improvement using
the drug. Team B runs a trial with 90 patients, of whom 74 show improvement. Use the mean and standard
deviation of the two trials to decide which adjustment shows stronger evidence of an improvement.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc82b065c-b429-427c-93a3-8aa6943a431e%2Fa5c5035b-3485-4ecb-aca1-d2cd2fff869c%2Fkktyc1m_processed.jpeg&w=3840&q=75)
Transcribed Image Text:9 A certain drug is found to be helpful for 70% of patients who take it. Two research teams are attempting to
improve its effectiveness by adjusting the delivery system for the drug. Both conduct random trials to test the
effectiveness of their changes. Team A runs a trial with 50 patients, of whom 45 show improvement using
the drug. Team B runs a trial with 90 patients, of whom 74 show improvement. Use the mean and standard
deviation of the two trials to decide which adjustment shows stronger evidence of an improvement.
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