Modified<i>t</i>Tests and Confidence Intervals for Asymmetrical Populations 论文
1978Journal of the American Statistical Association引用 278
Statistical Distribution Estimation and ApplicationsStatistical Methods and Bayesian InferenceBayesian Methods and Mixture Models
摘要
Abstract This article considers a procedure that reduces the effect of population skewness on the distribution of the t variable so that tests about the mean can be more correctly computed. A modification of the t variable is obtained that is useful for distributions with skewness as severe as that of the exponential distribution. The procedure is generalized and applied to the jackknife t variable for a class of statistics with moments similar to those of the sample mean. Tests of the correlation coefficient obtained using this procedure are compared empirically with corresponding tests determined using Fisher's z transformation and the usual jackknife estimate.