2 of 8 (0 complete) 8.3.5 A certain drug is used to treat asthma. In a clinical

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2 of 8 (0 complete) 8.3.5 A certain drug is used to treat asthma. In a clinical trial of the drug, 16 of 288 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 10% 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? O Right tailed test O Two-tailed test O Left-tailed test Click to select your answer and then click Check Answer parts aining Clear All Final C F8 F10

Explanation / Answer

Here we need to test the claim that less than 10% of treated subjects experienced headaches.

Hence the alternative hypothesis will be

H1: P < 0.10

Hence the test one tailed and it is left tailed.

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