Chapter 9 Exercise

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Chapter 9 Exercise 1. a) H0: The difference between the proportions is equal to 0. b) Ha: The difference between the proportions is different from 0. c) Hypothesized difference (D): 0 d) 1.960 e) < 0.0001 f) The risk to reject the null hypothesis H0 while it is true is lower than 0.01%.
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