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Unformatted text preview: Reject H if x < 28.6 ? b) Suppose the consumer advocate tests a sample of n = 25 cars. Find the best rejection region with the significance level = 0.05. c) Suppose the consumer advocate tests a sample of n = 25 cars and uses a 5% level of significance. Find the power of the test if the true mean is 1 = 29.5. d) Repeat part (c) for the case when the true value of the mean is 1 = 28.5. e) Repeat parts (c) and (d) using a larger sample size of n = 49. f) Repeat parts (c) and (d) using a 10% level of significance. g) What is the minimum sample size required if we want to have the power of at least 0.80 at 1 = 29.5 for the test with a 5% level of significance?...
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This note was uploaded on 10/12/2011 for the course STATISTICS stat 410 taught by Professor Stepanov during the Spring '11 term at University of Illinois, Urbana Champaign.
- Spring '11