Chapter 8: Q. 9.30 (page 364)
Define the term Critical points.
Short Answer
The rejection region is the values of test statistic for which the null hypothesis is rejected.
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Chapter 8: Q. 9.30 (page 364)
Define the term Critical points.
The rejection region is the values of test statistic for which the null hypothesis is rejected.
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a.Using an alternative hypothesis ofp< 0.4, using a sample size ofn= 50, and assumingthat the true value ofpis 0.25, find the power of the test. See Exercise 34 鈥淐alculating Power鈥漣n Section 8-1. [Hint:Use the valuesp= 0.25 andpq/n= (0.25)(0.75)/50.]
b.Find the value of , the probability of making a type II error.
c.Given the conditions cited in part (a), find the power of the test. What does the power tell us about the effectiveness of the test?
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