Answer
The mean of the sample is 8.5.
Work Step by Step
A sample of 8 numbers is randomly selected from a population with mean (mu)=9 and standard deviation (sigma) = 2
The selected values are: 13, 8, 8, 5, 11, 6, 7, 10
Here is the calculation:
Basic Statistics: Tales of Distributions 10th Edition
by Spatz, Chris
Published by
Cengage Learning
ISBN 10:
0-49580-891-1
ISBN 13:
978-0-49580-891-6
Chapter 8 - Samples, Sampling Distributions, and Confidence Intervals - Problems - Page 150: 8.1
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