Elementary Statistics: Picturing the World (6th Edition)

Published by Pearson
ISBN 10: 0321911210
ISBN 13: 978-0-32191-121-6

Chapter 7 - Hypothesis Testing with One Sample - Section 7.3 Hypothesis Testing for the Mean - Exercises - Page 383: 5

Answer

The critical value is 1.717. The rejection region is anhy value above 1.717.

Work Step by Step

Using TI-84 calculator: 1. 2nd 2. VARS 3. Scroll down to invT 4. Input 1-alpha for the area. In this case the are will be 0.95 5. Input n -1 for degree of freedom. In this case, df = 22. 6. The output is the critical value and the rejection region.
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