The clothing company in Exercise 19(a) looks at a sample of delivery reports. The company tests the hypothesis that 90% of the deliveries are on time against the alternative that greater than 90% are on time and finds a P-value of 0.22. Which of these conclusions is appropriate?

a) There’s a 22% chance that 90% of the deliveries are on time.

b) There’s a 78% chance than 90% of the deliveries are on time.

c) There’s a 22% chance that the sample the company drew shows the correct percentage of on-time deliveries.

d) There’s a 22% chance that natural sampling variation could produce a sample of on-time deliveries at least as extreme as the one obtained if, in fact, 90% of deliveries are on time.