: 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%