Answer
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.
Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition
by Bluman, Allan
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
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