Essentials of Statistics (5th Edition)

Published by Pearson
ISBN 10: 0-32192-459-2
ISBN 13: 978-0-32192-459-9

Chapter 6 - Normal Probability Distributions - 6-4 Sampling Distributions and Estimators - Page 277: 18

Answer

a) 0, .36 .5, .48 1, .16 b) .4 c) Yes

Work Step by Step

a) First, we create the following table: 0, .36 .5, .48 1, .16 b) We find that the mean is: $mean = (.5)(.48)+(1)(.16)=.4$ c) As is the case in this problem and as always is the case, the mean of the sampling distribution is equal to the population proportion.
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