Answer
The sampling method is sound.
Work Step by Step
The sample was randomly selected so there should not be any bias in the results.
Essentials of Statistics (5th Edition)
by Triola, Mario F.
Published by
Pearson
ISBN 10:
0-32192-459-2
ISBN 13:
978-0-32192-459-9
Chapter 1 - Introduction to Statistics - 1-2 Statistical and Critical Thinking - Page 12: 11
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