Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 1 - Section 1.5 - Assess Your Understanding - Vocabulary and Skill Building - Page 42: 9


(a) Nonresponse bias. (b) The polling organization can use callbacks, or they can use real callers to get more responses.

Work Step by Step

(a) More than 98% of the individuals selected to be in the sample did not respond to the questionnaire. (b) It can phone those who did not respond or can use real callers in order to increase the rate of responses.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.