ANOVA-Single Factor -- Tukey Test for Differences

ANOVA-Single Factor -- Tukey Test for Differences - ANOVA...

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ANOVA SINGLE FACTOR Tukey Test for Differences SITUATION: Sampling From 3 or more Populations Based on a Single Factor No common link between the k-th observation from Population 1 and the k-th observation of Population 2, or 3, etc. Must have same sample sizes from each population Have determined that there ARE differences in the means QUESTION: Which means differ from the others? Example: Can we conclude that there are differences in average battery life of 5 different types of notebook computer batteries? And if so, which ones differ from the others? The Statistical F-Test: H 0 : μ A = μ B = μ C = μ D = μ E H 1 : At least one of these μ j 's does not equal the others Battery lives on the same type of computer 6 were of Type A 6 were of Type B 6 were of Type C 6 were of Type D 6 were of Type E
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Go to: TOOLS Data Analysis Anova: Single Factor Highlight the block of cells that contains all data -- the 6 data rows (plus the label row) and the five columns (A1:E7).
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