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: 15

Answer

a. Proportion of girls, probability 0, .25 .5,.5 1, .25 b. Yes

Work Step by Step

a. We know the following: Proportion of girls, probability 0, .25 .5,.5 1, .25 b. Using this table, we see that the sample proportion and the population proportion are equal (.5). Thus, the sample proportion is an unbiased predictor of the population proportion.
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