Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

Published by McGraw-Hill Education
ISBN 10: 0078136334
ISBN 13: 978-0-07813-633-7

Chapter 7 - Confidence Intervals and Sample - 7-2 Confidence Intervals for the Mean When σ Is Unknown - Exercises 7-2 - Page 387: 3


a. 2.898 b. 2.074 c. 2.624 d. 1.833 e. 2.093

Work Step by Step

find d.f. and then use the chart on page 790 to find the answer.
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