This article develops some general theory for testing the rank of a matrix. Applications include tests of interaction in two-factor experiments that are more powerful than the usual F test for certain ...

The vitcap dataset has 24 rows and 3 columns. It contains data on vital capacity for workers in the cadmium industry. a) Calculated descriptive statistics (mean = 4.47 L, standard deviation = 1.01 L) ...

Increasingly sophisticated data analyses are seeping into the legal industry smoothed graphics, text mining, regression, statistics, machine learning and more. As that happens, leaders of law firms ...