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Statistical Biology Part 2 : Epidemiology, Study Designs, Clinical Trials, Genetics Statistics & Advanced Biostatistics
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STAT-080
What is the F-DISTRIBUTION and when is the F-TEST used?
A. F-test compares two sample means directly
B. F-distribution: ratio of two chi-square distributions divided by their degrees of freedom; F-test used to compare VARIANCES of two groups or in ANOVA for comparing multiple group means
C. F-test is the same as t-test for large samples
D. F-test is only used for categorical data
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