A certain drug is used to treat asthma. In a clinical trial of the drug, 22 of 283 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 11% 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<0.11 z 1.734547566 p=0.0414104868 p=0.0777385159 n-283 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? z=-1.73 (Round to two decimal places as needed.) c. What is the P-value? P-value= (Round to four decimal places as needed.)

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A certain drug is used to treat asthma. In a clinical trial of the drug, 22 of 283 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 11% 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<0.11
z 1.734547566
p=0.0414104868
p=0.0777385159
n-283
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?
z=-1.73
(Round to two decimal places as needed.)
c. What is the P-value?
P-value=
(Round to four decimal places as needed.)
Transcribed Image Text:A certain drug is used to treat asthma. In a clinical trial of the drug, 22 of 283 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 11% 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<0.11 z 1.734547566 p=0.0414104868 p=0.0777385159 n-283 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? z=-1.73 (Round to two decimal places as needed.) c. What is the P-value? P-value= (Round to four decimal places as needed.)
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