A certain drug is used to treat asthma. In a clinical trial of the drug, 24 of 267 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. 1-PropZTest prop <0.09 2= - 0.006415399 p= 0.4974406436 p= 0.0898876404 n= 267 a. Is the test two-tailed, left-tailed, or right-tailed? O Two-tailed test O Right tailed test O Left-tailed test b. What is the test statistic? z=0 (Round to two decimal places as needed.) c. What is the P-value? P-value =O (Round to four decimal places as needed.) A LAILA t. at -Al.-. -d... d.....--- l..d. .a tan

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Question

22

d. What is the null hypothesis, and what do you conclude about it?
Identify the null hypothesis.
O A. Ho: p<0.09
О В. Но: р#0.09
ОС. Но: р> 0.09
O D. Ho: p= 0.09
Decide whether to reject the null hypothesis. Choose the correct answer below.
O A. Reject the null hypothesis because the P-value is less than or equal to the significance level, a.
O B. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a.
OC. Reject the null hypothesis because the P-value is greater than the significance level, a.
O D. Fail to reject the null hypothesis because the P-value is greater than the significance level, a.
e. What is the final conclusion?
O A. There is not sufficient evidence to support the claim that less than 9% of treated subjects experienced headaches.
O B. There is sufficient evidence to support the claim that less than 9% of treated subjects experienced headaches.
Transcribed Image Text:d. What is the null hypothesis, and what do you conclude about it? Identify the null hypothesis. O A. Ho: p<0.09 О В. Но: р#0.09 ОС. Но: р> 0.09 O D. Ho: p= 0.09 Decide whether to reject the null hypothesis. Choose the correct answer below. O A. Reject the null hypothesis because the P-value is less than or equal to the significance level, a. O B. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a. OC. Reject the null hypothesis because the P-value is greater than the significance level, a. O D. Fail to reject the null hypothesis because the P-value is greater than the significance level, a. e. What is the final conclusion? O A. There is not sufficient evidence to support the claim that less than 9% of treated subjects experienced headaches. O B. There is sufficient evidence to support the claim that less than 9% of treated subjects experienced headaches.
A certain drug is used to treat asthma. In a clinical trial of the drug, 24 of 267 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.
1-PropZTest
prop <0.09
z = - 0.006415399
p= 0.4974406436
p=0.0898876404
n= 267
a. Is the test two-tailed, left-tailed, or right-tailed?
Two-tailed test
Right tailed test
Left-tailed test
b. What is the test statistic?
(Round to two decimal places as needed.)
c. What is the P-value?
P-value =|
(Round to four decimal places as needed.)
J IAL- !- al- -.. L.- -L --:.
-..b -i d. ..... --- -..d. -b -.. n
Transcribed Image Text:A certain drug is used to treat asthma. In a clinical trial of the drug, 24 of 267 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. 1-PropZTest prop <0.09 z = - 0.006415399 p= 0.4974406436 p=0.0898876404 n= 267 a. Is the test two-tailed, left-tailed, or right-tailed? Two-tailed test Right tailed test Left-tailed test b. What is the test statistic? (Round to two decimal places as needed.) c. What is the P-value? P-value =| (Round to four decimal places as needed.) J IAL- !- al- -.. L.- -L --:. -..b -i d. ..... --- -..d. -b -.. n
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