A certain drug is used to treat asthma. In a clinical trial of the drug, 23of 28
ID: 3254561 • Letter: A
Question
A certain drug is used to treat asthma. In a clinical trial of the drug, 23of 289
treated subjects experienced headaches (based on data from the manufacturer). The accompanying calculator display shows results from a test of the claim that less than9%
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 (b)
A: what is the test statistic....z=? B: What is the P value?
from 1-prop Tests prop 0.09 level 2 -0.618693600 p 2680591135 0795847751 n- 289Explanation / Answer
From the given output,
A) z = -0.6186936 [Remember to round it off as per the question suggests. For example if the question is asking for two decimal places then the z value will be -0.62].
B) P value = 0.2680591135 [Again round it off as per the question says. For example, at 4 decimal places, p value = 0.2681]
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