23. Deliveries. The clothing company in Exercise 21a looks at a sample of delivery reports. They test
Question:
23. Deliveries. The clothing company in Exercise 21a looks at a sample of delivery reports. They test the hypothesis that 90% of the deliveries are on time against the alternative that greater than 90% are on time and find 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 that 90% of the deliveries are on time.
c) There’s a 22% chance that the sample they drew shows the correct percentage of on-time deliveries
d) There’s a 22% chance that natural sampling variation could produce a sample with an observed proportion of on-time deliveries such as the one they obtained if, in fact, 90% of deliveries are on time.
Step by Step Answer:
Business Statistics
ISBN: 9780321716095
2nd Edition
Authors: Norean D. Sharpe, Paul F. Velleman, David Bock, Norean Radke Sharpe