Statistical methods for automatically identifying de pendent word pairs i e dependent bigrams in a cor pus of natural language text have traditionally been performed using asymptotic tests of signi cance This paper suggests that Fisher s exact test is a more ap propriate test due to the skewed and sparse data sam ples typical of this problem Both theoretical and experimental comparisons between...

three hundred cattle from 12 dairy farms in shiraz area were chosen randomly for population to be studied. after restraining, the jugular vein was examined for distention and on the base of severity, first, second and third degree distention was recorded. then the cattle were checked for jugular pulsation. the data were analyzed by using chi square, fisher exact test and t-test. p

There are various two-tailed test versions of Fisher’s exact test for analyzing a 2~ 2 table. In this paper, the optimal version is selected on the basis of the concept of mean power (arranging in order from the smallest to the largest hypergeometrical probability, and in the case of a tie, arranging in order from the largest to the smallest value of the odds-ratio), and this selection is as va...

Six Sigma practitioners occasionally conduct studies to assess differences between items such as operators or machines. When the experimental data are measured on a continuous scale (measuring nozzle diameter in microns, for example), a procedure such as “Student’s” two-sample t-test may be appropriate. When the response variable is recorded using counts, however, Karl Pearson’s test may be emp...

There are two fundamentally different exact tests for comparing the equality of two binomial probabilities – Fisher’s exact test (Fisher, 1925), and Barnard’s exact test (Barnard, 1945). Fisher’s exact test (Fisher, 1925) is the more popular of the two. In fact, Fisher was bitterly critical of Barnard’s proposal for esoteric reasons that we will not go into here. Notwithstanding Fisher’s reserv...

Information on 54 patients was retrospectively collected to compare the presentation trends of cognitive disorders in those of non-English speaking background (NESB) to English speaking background (ESB) attending an Australian memory clinic that extensively uses fluorodeoxyglucose positron emission tomography (FDG PET) in the diagnosis of cognitive concerns. NESB patients were less likely to be...