Introductory Statistics 9th Edition

Published by Wiley
ISBN 10: 1-11905-571-7
ISBN 13: 978-1-11905-571-6

Chapter 8 - Section 8.3 - Estimation of a Population Mean: σ Not Known - Exercises - Page 329: 8.34

Answer

a. t= -1.302, df=42 area = 0.1 b. t= 2.797, df=25-1 = 24 area = 0.995 c. t= 1.397, df=9-1 = 8 area = 0.9 d. t= -2.383, df=67 area = 0.01

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