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# Exam1_FC3 - difference between the population means At...

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Parameter Coefficient of Variation

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If the standard deviation is X, you don’t know if it’s big or small; you need a comparison; if the mean is 100K larger, than the standard deviation is small. Greek symbol.
Consistency Efficiency

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Smaller standard deviation; more likely to be accurate. When you increase sample size, x should approach mu and s should approach standard deviation.
Z; T Sample Squares / Degrees of Freedom

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MS (mean squares) = ____ values are always smaller than ____ values.
Alternative Hypothesis Null Hypothesis

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All means emanate from the same population; there is no

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Unformatted text preview: difference between the population means. At least two means differ between populations. Null Hypothesis Analysis of the Variance ANOVA For ANOVA, not statistical difference between the means of different populations. Mean Squares Total Sum of Squares (SST) Measures total variation about the pooled, or overall, mean. Normalizes sum of squares value by dividing by the appropriate degrees of freedom to make them comparable. Interaction MSTR / MSE F-test = The combined relationship between two treatment variables....
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