A certain drug is used to treat asthma. In a clinical trial of the drug, 21 of 268 treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than 9% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.05 significance level to complete parts (a) through (e) below. a. Is the test two-tailed, left-tailed, or right-tailed? O Left-tailed test 1-PropZTest prop <0.09 Z=-0.665955555 p=0.2527197546 p=0.0783582090 n=268
A certain drug is used to treat asthma. In a clinical trial of the drug, 21 of 268 treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than 9% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.05 significance level to complete parts (a) through (e) below. a. Is the test two-tailed, left-tailed, or right-tailed? O Left-tailed test 1-PropZTest prop <0.09 Z=-0.665955555 p=0.2527197546 p=0.0783582090 n=268
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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![A certain drug is used to treat asthma. In a clinical trial of the drug, 21 of 268 treated
subjects experienced headaches (based on data from the manufacturer). The
accompanying calculator display shows results from a test of the claim that less than 9% of
treated subjects experienced headaches. Use the normal distribution as an approximation
to the binomial distribution and assume a 0.05 significance level to complete parts (a)
through (e) below.
a. Is the test two-tailed, left-tailed, or right-tailed?
O Left-tailed test
....
1-PropZTest
prop <0.09
Z=-0.665955555
p=0.2527197546
p=0.0783582090
A
n=268](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe0fb1c82-98f4-499d-becd-333bff51c026%2F4bca5413-8756-42dd-b1af-d1342f95e307%2Flaitmg5n_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A certain drug is used to treat asthma. In a clinical trial of the drug, 21 of 268 treated
subjects experienced headaches (based on data from the manufacturer). The
accompanying calculator display shows results from a test of the claim that less than 9% of
treated subjects experienced headaches. Use the normal distribution as an approximation
to the binomial distribution and assume a 0.05 significance level to complete parts (a)
through (e) below.
a. Is the test two-tailed, left-tailed, or right-tailed?
O Left-tailed test
....
1-PropZTest
prop <0.09
Z=-0.665955555
p=0.2527197546
p=0.0783582090
A
n=268
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