A certain drug is used to treat asthma. In a clinical trial of the drug, 15 of 294 treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a 1-PropZTest 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. prop <0.09 z= -2.335441545 p=0.0097601831 p-0.0510204082 n= 294 a. Is the test two-tailed, left-tailed, or right-tailed? O Left-tailed test Two-tailed test O Right 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.) d. What is the null hypothesis, and what do you conclude about it? Identify the null hypothesis. O A. Ho: p>0.09 O B. Ho: p=0.09 OC. Ho: p<0.09 O D. Ho: p#0.09

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A certain drug is used to treat asthma. In a clinical trial of the drug, 15 of 294 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 = - 2.335441545
p= 0.0097601831
p= 0.0510204082
n = 294
a. Is the test two-tailed, left-tailed, or right-tailed?
Left-tailed test
Two-tailed test
Right tailed test
b. What is the test statistic?
Z=
(Round to two decimal places as needed.)
c. What is the P-value?
P-value =
(Round to four decimal places as needed.)
d. What is the null hypothesis, and what do you conclude about it?
Identify the null hypothesis.
O A. Ho: p>0.09
В. Но Р3D0.09
С. Но р<0.09
O D. Ho: p+0.09
Transcribed Image Text:A certain drug is used to treat asthma. In a clinical trial of the drug, 15 of 294 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 = - 2.335441545 p= 0.0097601831 p= 0.0510204082 n = 294 a. Is the test two-tailed, left-tailed, or right-tailed? Left-tailed test Two-tailed test Right tailed test b. What is the test statistic? Z= (Round to two decimal places as needed.) c. What is the P-value? P-value = (Round to four decimal places as needed.) d. What is the null hypothesis, and what do you conclude about it? Identify the null hypothesis. O A. Ho: p>0.09 В. Но Р3D0.09 С. Но р<0.09 O D. Ho: p+0.09
A certain drug is used to treat asthma. In a clinical trial of the drug, 15 of 294 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 = - 2.335441545
p= 0.0097601831
p= 0.0510204082
n = 294
.....
C. vvnat is the P-vaiue?
P-value =
(Round to four decimal places as needed.)
d. What is the null hypothesis, and what do you conclude about it?
Identify the null hypothesis.
А. Но: р> 0.09
В. Но: р-0.09
С. Но: р<0.09
O D. Ho: p+0.09
Decide whether to reject the null hypothesis. Choose the correct answer below.
O A. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a.
B. Reject the null hypothesis because the P-value is less than or equal to the significance level, a.
C. Fail to reject the null hypothesis because the P-value is greater than the significance level, a.
D. 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 sufficient evidence to warrant rejection of the claim that less than 9% of treated subjects experienced headaches.
B. There is sufficient evidence to support the claim that less than 9% of treated subjects experienced headaches.
C. There is not sufficient evidence to support the claim that less than 9% of treated subjects experienced headaches.
D. There is not sufficient evidence to warrant rejection of the claim that less than 9% of treated subjects experienced headaches.
Transcribed Image Text:A certain drug is used to treat asthma. In a clinical trial of the drug, 15 of 294 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 = - 2.335441545 p= 0.0097601831 p= 0.0510204082 n = 294 ..... C. vvnat is the P-vaiue? P-value = (Round to four decimal places as needed.) d. What is the null hypothesis, and what do you conclude about it? Identify the null hypothesis. А. Но: р> 0.09 В. Но: р-0.09 С. Но: р<0.09 O D. Ho: p+0.09 Decide whether to reject the null hypothesis. Choose the correct answer below. O A. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a. B. Reject the null hypothesis because the P-value is less than or equal to the significance level, a. C. Fail to reject the null hypothesis because the P-value is greater than the significance level, a. D. 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 sufficient evidence to warrant rejection of the claim that less than 9% of treated subjects experienced headaches. B. There is sufficient evidence to support the claim that less than 9% of treated subjects experienced headaches. C. There is not sufficient evidence to support the claim that less than 9% of treated subjects experienced headaches. D. There is not sufficient evidence to warrant rejection of the claim that less than 9% of treated subjects experienced headaches.
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