Answer
P is between 0.01 and 0.025.
Work Step by Step
The P-value is the interval of probabilities between which the value of the test-statistic lies in the table with degree of freedom=sample size-1=21-1=20, hence P is between 0.01 and 0.025.
Elementary Statistics (12th Edition)
by Triola, Mario F.
Published by
Pearson
ISBN 10:
0321836960
ISBN 13:
978-0-32183-696-0
Chapter 8 - Hypothesis Testing - 8-4 Testing a Claim About a Mean - Basic Skills and Concepts - Page 420: 7
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