Do distributions have the same shape (and stay normal)? What is meant by bootstrap method? What is bonferroni correction used for?

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FA16 PSY 202 Section 1 Exam 4 Review Sheet CHAPTER 15 – Other Two-Sample Tests: Variability and Relationships A. Tests on variances • pooled variance comes out too large – Type II errors - Must test if variances are homogenous 1. F-test 2 2 2 2 •  1 /2 = s 1s 2 • parametric test that makes the assumption we are dealing with continuous scores • also makes an assumption that the population is normal o If non-normal, or one is and one isn’t, this test will not work • Skewed so the upper and lower critical values are different and must be found separately. 2. Alternatives to the F-test • 3 alternatives (2 have same problem) o Hartley’s Fmax o Cochran’s C • Wea