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ANOVA

# ANOVA - Probability Distributions Mean Normal distribution...

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9/19/11 11 School of Chemical Probability Distributions v Normal distribution v t – distribution v χ2 distribution v F – distribution Mean: X Þ m Variance : S 2 Þ s 2 R. A. Fisher

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9/19/11 22 School of Chemical CHE 320: Roadmap v Probability v Random Variables – Discrete & Continuous v Probability Distributions Theory for Statistics v Point Estimation v Confidence Intervals v Hypothesis Testing v Statistical Inferences v Analysis of Variance (ANOVA) v ? Applications of Statistics
9/19/11 33 School of Chemical Analysis of Variance v What it is? What it is not? v Why ANOVA? v How to use it? How not to use it? v When to use it?

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9/19/11 44 School of Chemical Analysis of Variance a) Test different groups’ means What does ANOVA do? Group I 1. 2. n. (observatio ns) Group II 1. 2. n. (observatio ns) Group III 1. 2. n. (observatio ns) Group IV 1. 2. n. (observatio ns) ANOVA uses variances to cast inference on the means .
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ANOVA - Probability Distributions Mean Normal distribution...

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