Mathematics, 05.05.2020 15:32, dezmondpowell

A certain drug is used to treat asthma. In a clinical trial of the drug, 21 of 250 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 8% 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
a. Is the test two-tailed, left-tailed, or right-tailed?
1-PropzTest
prop<0.08
z=0.233126
D=0.592168

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A certain drug is used to treat asthma. In a clinical trial of the drug, 21 of 250 treated subjects...