A certain drug is used to treat asthma. In a clinical trial of the drug, 22 of 263 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 0.01 significance level to complete parts (a) through (e) below. 1-PropZTest prop<0.09 z=−0.359829401 p=0.3594873575 p=0.0836501901 n=263 Question content area bottom Part 1 a. Is the test two-tailed, left-tailed, or right-tailed? Two-tailed test Left-tailed test Right tailed test Part 2 b. What is the test statistic? z=enter your response here (Round to two decimal places as needed.) Part 3 c. What is the P-value? P-value=enter your response here (Round to four decimal places as needed.)
A certain drug is used to treat asthma. In a clinical trial of the drug, 22 of 263 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 0.01 significance level to complete parts (a) through (e) below. 1-PropZTest prop<0.09 z=−0.359829401 p=0.3594873575 p=0.0836501901 n=263 Question content area bottom Part 1 a. Is the test two-tailed, left-tailed, or right-tailed? Two-tailed test Left-tailed test Right tailed test Part 2 b. What is the test statistic? z=enter your response here (Round to two decimal places as needed.) Part 3 c. What is the P-value? P-value=enter your response here (Round to four decimal places as needed.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
Related questions
Question
A certain drug is used to treat asthma. In a clinical trial of the drug,
22
of
263
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 0.01
significance level to complete parts (a) through (e) below. |
|
|
Question content area bottom
Part 1
a. Is the test two-tailed, left-tailed, or right-tailed?
Two-tailed test
Left-tailed test
Right tailed test
Part 2
b. What is the test statistic?
z=enter your response here
(Round to two decimal places as needed.)
Part 3
c. What is the P-value?
P-value=enter your response here
(Round to four decimal places as needed.)
Part 4
d. What is the null hypothesis, and what do you conclude about it?
Identify the null hypothesis.
H0: p=0.09
H0: p<0.09
H0: p>0.09
H0: p≠0.09
Part 5
Decide whether to reject the null hypothesis. Choose the correct answer below.
Reject
the null hypothesis because the P-value is
less than or equal to
the significance level,
α.
Fail to reject
the null hypothesis because the P-value is
less than or equal to
the significance level,
α.
Reject
the null hypothesis because the P-value is
greater than
the significance level,
α.
Fail to reject
the null hypothesis because the P-value is
greater than
the significance level,
α.
Part 6
e. What is the final conclusion?
There
is not
sufficient evidence to support the claim that less than
9%
of treated subjects experienced headaches.There
is
sufficient evidence to support the claim that less than
9%
of treated subjects experienced headaches.There
is
sufficient evidence to warrant rejection of the claim that less than
9%
of treated subjects experienced headaches.There
is not
sufficient evidence to warrant rejection of the claim that less than
9%
of treated subjects experienced headaches.Expert Solution
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