Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 9 - Review - Review Exercises - Page 472: 15d

Answer

Lower Bound = 20.4 cm, Upper Bound = 48.9 cm. Hence, we are 95% confident that the mean standard deviation diameter of a Douglas fir tree in the western Washington Cascades is between 20.4 and 48.9 cm.

Work Step by Step

In Minitab, from the stats menu, select basic statistics and the 1 variance. Fill in the fields and click ok.
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