Conducts Bartlett’s and Levene’s tests of the homogeneity of variance assumption in analysis of variance.

Calculates parameters and forecasts using the Holt-Winters Multiplicative or Additive forecasting method for seasonal data.

Evaluates the hypergeometric distribution function.

Evaluates the hypergeometric probability function.

Constructs a completely testable hypothesis.

Sums of cross products for a multivariate hypothesis.

Tests for the multivariate linear hypothesis.