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: 5

Answer

(a) Sampling bias. (b) He should use the systematic sampling.

Work Step by Step

(a) This is not a representative sample. (b) To obtain a more representative sample he must select customers seven days a week throughout the day. For example, he can select one or two customers per hour for the next seven days.
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.