certain drug is used to treat asthma. In a clinical trial of the drug, 23 of 273 treated subiects 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
A certain drug is used to treat asthma. In a clinical trial of the drug, 23 of 273 treated subiects 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
and assume a 0.05 significance level to complete parts (a) through d) below.
a) Is the test two-tailed, left-tailed, or right-tailed?
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) Decide whether to reject the null hypothesis. Choose the correct answer below
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