Introductory Statistics 9th Edition

by Mann, Prem S.

Published by Wiley

ISBN 10: 1-11905-571-7

ISBN 13: 978-1-11905-571-6

Chapter 9 - Section 9.4 - Hypothesis Tests About a Population Proportion: Large Samples - Exercises - Page 383: 9.57

Answer

a. H1: p<0.25, α = .01, critical value = 2.326 Rejection region = z< -2.326 Non rejection region = z> -2.326 b. H1: p!=0.25, α/2 = .01/2=0.005, critical value = 2.576 Rejection region = z< -2.576 or z> 2.576 Non rejection region = [-2.576, 2.576] c. H1: p>0.25, α = .01, critical value = 2.326 Rejection region = z> 2.326 Non rejection region = z< 2.326

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