A certain drug is used to treat asthma. In a clinical trial of the drug, 27 of 279 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.

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A certain drug is used to treat asthma. In a clinical trial of the drug, 27 of 279 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 = 0.395382781
p=0.6537197926
p= 0.0967741935
=279
Transcribed Image Text:A certain drug is used to treat asthma. In a clinical trial of the drug, 27 of 279 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 = 0.395382781 p=0.6537197926 p= 0.0967741935 =279
b. What is the test statistic?
z=-2.58
(Round to two decimal places as needed.)
c. What is the P-value?
0.0050
(Round to four decimal places as needed.)
P-value =
Transcribed Image Text:b. What is the test statistic? z=-2.58 (Round to two decimal places as needed.) c. What is the P-value? 0.0050 (Round to four decimal places as needed.) P-value =
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