A certain drug is used to treat asthma. In a clinical trial of the drug, 15 of 277 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-- 2.084814472 p-0.0185430723 p-0.0541516245 n= 277 a. Is the test two-tailed, left-tailed, or right-tailed? 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. Click to select your answer(s).

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A certain drug is used to treat asthma. In a clinical trial of the drug, 15 of 277 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-- 2.084814472
p-0.0185430723
p-0.0541516245
n= 277
a. Is the test two-tailed, left-tailed, or right-tailed?
Left-tailed test
Two-tailed test
O 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.
Click to select your answer(s).
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Transcribed Image Text:A certain drug is used to treat asthma. In a clinical trial of the drug, 15 of 277 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-- 2.084814472 p-0.0185430723 p-0.0541516245 n= 277 a. Is the test two-tailed, left-tailed, or right-tailed? Left-tailed test Two-tailed test O 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. Click to select your answer(s). tv w MacBook Air esc 000 F1 F2 F3 000 F4 F5 F6 F7 F11 F8 F9 F10 @ 23 $ & 3 4 6 7 9 * CC
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