The Bonferroni theorem states that the probability that at least one of a set of events occurs
Question:
a. Following Example 10, construct a confidence interval for each factor and guarantee that they both hold with overall confidence level at least 95%. [Each interval should use t.0125 = 2.46.]
b. Exercise 14.8 referred to a study comparing three groups (smoking status never, former, or current) on various personality scales. The study measured 35 personality scales and reported an F test comparing the three smoking groups for each scale. The researchers mentioned doing a Bonferroni correction for the 35 F tests. If the nominal overall probability of Type I error was 0.05 for the 35 tests, how small did the P-value have to be for a particular test to be significant? (What should the Type I error probability be for each of 35 tests in order for the overall Type I error probability to be no more than 0.05?)
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Related Book For
Statistics The Art And Science Of Learning From Data
ISBN: 9780321755940
3rd Edition
Authors: Alan Agresti, Christine A. Franklin
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