On the computation and use of a table of percentage points of Bartlett's M
Bartlett's M分位点表的计算与使用
The test criterion M, Bartlett's M, is often used as a tost of variance heterogeneity, when variances are estimated for groups of observations. The percentage points of M may, as is well known, be approximated by a X2 distribution. A method aiming to improve the approximation is given in connexion with Table 32 in Biometrika Tables for Statisticians, vol.I.We present here a new table giving exact percentage points of M in the special case where the groups are of the same…