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Turning Points in Random Permutations of Two Kinds of Distinct Elements. Classroom Notes
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Hombas, Vassilios – International Journal of Mathematical Education in Science and Technology, 2004
The mean and variance of the number of turning points in random permutations of two kinds of distinct elements are evaluated. These results are applied to a Wald-Wolfowitz run test.
Descriptors: Statistics, Mathematics, Mathematical Formulas, Computation
Interval Estimation of [Omega Squared], the Proportion of Variance Associated with a Set of Fixed Treatments. Iowa Testing Programs Occasional Paper Number 32.
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Feldt, Leonard S.; Melican, Gerald J. – 1983
Experimenters sometimes wish to estimate for a particular dependent variable the proportion of total group variance that is associated with mean differences among fixed treatments or subject classifications. Hays (1981) represents this proportion by the parameter omega squared. A point estimate may be easily computed as a function of the number of…
Descriptors: Analysis of Variance, Data, Estimation (Mathematics), Mathematical Formulas