FIN 401 Study Guide - Final Guide: Ator, Random Variable, Emor
7 Feb 2016
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New terminology: x is the response variable, and its values are responses. xij refers to the ith observation in the jth sample. E. g. x35 is the third observation of the fifth sample. The grand mean, , is the mean of all the observations, i. e. : (n = n1 + n2 + + nk) More new terminology: population classification criterion is called a factor. Each population is a factor level. observation in a second sample, this is called a matched pairs experiment. The test statistic for the mean of the population of differences ( ) is: which is student t distributed with nd 1 degrees of freedom, provided that the differences are normally distributed. When looking at two population variances, we of interest to us is: consider the ratio of the variances, i. e. the parameter. The sampling statistic: is f distributed wit d. f.
