: the percentage of defective items in the latest shipment
might actually be only 20%, but you happened by chance to draw a
sample whose percentage of defective items is 23%. If you decide
to resolve your dilemna by considering the result of your
sampling as a test of the null hypothesis "the percentage of
defective items in the latest shipment is 20%" against the
alternative hypothesis "the percentage of defective items in the
latest shipment is greater than 20%", the observed significance
level is closest to
a. 75%
b. 5%
c. 15%
d. 55%
e. 25%