A certain drug is used to treat asthma. In a clinical trial of the drug, 16 of 268 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 0.05 significance level to complete parts (a) through (e) below.

1-PropZTest
prop <0.08
z=-1.224877326
p=0.1103107223
(p)=0.0597014925
=268
.
Is the test two-tailed, left-tailed, or right-tailed?
a. Two-tailed test
b. Left-tailed test
c. Right tailed test