作者:Comstock, RE
作者单位:University of Minnesota System; University of Minnesota Twin Cities
摘要:The actual subclass numbers in the data concerning [sex difference in growth rate of swine] did not deviate significantly, as judged by chi- square, from the expected numbers. However, the method of expected numbers by comparison with that of fitting constants overestimated the mean square for the sex-litter interaction by enough to have a bearing on interpretation of the results and the mean squares for litters by a slight amount. The differences in results of the two methods were interpreted...
作者:Cochran, WG
作者单位:Iowa State University
摘要:The following procedure is suggested Consider whether one of the simplest methods of analysis (equal weights, equal weights within treatments, equal weights within replicates) can be used without further investigation. If in doubt apply the appropriate test. If none of the methods in [the above] appears satisfactory, estimate the relative amounts of binomial and extraneous variation from an analysis of variance of the fractions or percentages. Examples are selected for the paper from the servi...