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作者：Pearson, ES; Wilks, SS
摘要：If each of k samples is drawn from some bivariate normal population, criteria are derived for testing the 3 hypotheses: H (that the samples all come from the same population) ; H 1 (that the samples come from populations with the same set of variances and correlations but having means with any value whatever); H 2 (that, assuming the population variances and correlations are the same, the population means are the same). The moments and distributions of these criteria are obtained. In many prob...
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作者：Baten, WD
作者单位：University of Michigan System; University of Michigan
摘要：Two samples from Michigan and Indiana were compared. The Indiana sample had significantly more bracts and flower arms than the Michigan. Even numbers of flower arms are more frequent than odd. For the Indiana sample the correlation between the number of bracts and of flower arms is + .624. Regression is linear. The average number of flower arms per bract is 4.93 for the Indiana sample and 428 for the Michigan.
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作者：Elderton, WP
摘要：In fitting an exponential curve the B1 and B2 found from the statistics should be reduced by h2/[mu]2. This is suggested as an approximation in all J-shaped curves.
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作者：Wishart, J
摘要：Methods are given for finding the semi-invariants of the distribution of moments of the sample, in terms of the population semi-invariants, from those of R. A. Fisher''s kr estimates, and for deducing many terms in Fisher formulae of high order from formulae of lower order.
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作者：McKay, AT; Pearson, ES
摘要：The exact method here derived is applied to samples of n from a rectangular and a straight line universe and to samples of 3 from a normal universe. Comparing the latter with E. S. Pearson''s approximate table (Biometrika 24 416) the approximation is found satisfactory.
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作者：Thompson, WR
作者单位：Yale University
摘要：Methods of evaluating the likelihood for small samples are developed. In this way analysis of small samples subjected to different treatments aids in the planning of further research.
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作者：Hojo, T
摘要：The standard error of the mid-point between the quartiles, that of an estimate (E s) of the population standard deviation obtained from the distance between a quartile and the median, and the correlation between quartiles and median are derived. A more reliable estimate of the population mean is obtained from the midquartile point than from the median, though both estimates have a larger standard error than the sample mean. E 3 has a large standard error and is far from normally distributed.
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作者：Lesser, PCV
摘要：Distributions of brain weight, stature, and vital capacity for younger and older groups are compared by the X2 method. It is probably better to use the most likely parent population than that obtained from the combined samples. From the ratios or the differences of the x for men and women, can be determined the probability that the shrinkage in the 2 sexes depends on the same causes.
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作者：Tildesley, ML
摘要：Measurements were taken by R. Martin''s technique on living subjects. The northern Albanians are differentiated from the southern. Both have small and brachycephalic heads but the southern Albanians are smaller and more brachycephalic than the northern. This is probably not due to artificial deformation. Type contours are given.
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作者：Collett, M
摘要：Measurements, biometric constants and type contours are given for 255 adult skulls. The [male] and [female] series are probably of the same racial type. The [male][male] are more variable than the [female][female]. The population is more variable than some Dynastic Egyptian populations, but as homogeneous as most for which cranial samples are available. The type is distinctly negroid and the order of closure of sutures, % of metopism and other anomalies are intermediate between Negroes and Eur...
