Essentials of Statistics (5th Edition)

Published by Pearson
ISBN 10: 0-32192-459-2
ISBN 13: 978-0-32192-459-9

Chapter 8 - Hypothesis Testing - 8-4 Testing a Claim about a Mean - Page 414: 2

Answer

11

Work Step by Step

degree of freedom=sample size-1=12-1=11
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