Answer
The incorrect results are largely due to selection bias where mostly young voters are selected. Moreover, young interviewers made more mistakes in data entry due to poor training.
Work Step by Step
As given above.
Statistics: Informed Decisions Using Data (4th Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0321757270
ISBN 13:
978-0-32175-727-2
Chapter 1 - Section 1.5 - Assess Your Understanding - Applying the Concepts - Page 43: 27
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