Some articles on chi, tests, test, chi squared:
... The commonly used chi-squared tests for goodness of fit to a distribution and for independence in contingency tables are in fact approximations of the log-likelihood ... The general formula for Pearson's chi-squared test statistic is The approximation of G by chi squared is obtained by a second order Taylor expansion of the natural logarithm around 1 ... For samples of a reasonable size, the G-test and the chi-squared test will lead to the same conclusions ...
Famous quotes containing the words test and/or squared:
“I am willing, for a money consideration, to test this physical strength, this nervous force, and muscular power with which Ive been gifted, to show that they will bear a certain strain. If I break down, if my brain gives way under want of sleep, my heart ceases to respond to the calls made on my circulatory system, or the surcharged veins of my extremities burstif, in short, I fall helpless, or it may be, dead on the track, then I lose my money.”
—Ada Anderson (1860?)
“I want that head so sanitary and squared away that the Virgin Mary herself would be proud to go in there and take a dump.”
—Stanley Kubrick (b. 1928)