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利用平均绝对离差构造置信限和进行 t 类检验的 H 分布分位点AI 解读

A table to three decimal places is provided for the percentage points of the variate , where d is the mean absolute deviation from the mean of a normal sample of size n, and μ is the population mean. The table is analogous to the table of Student's t-distribution. It makes it possible to compute confidence limits for the mean and to perform various tests of significance by way of the mean absolute deviation instead of the standard deviation. This method is almost as accurate…

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基于正态样本平均绝对偏差的置信区间AI 解读

Confidence intervals for the population mean of a normal distribution can be determined from the distribution of the variate , analogue to Student's t-distribution but based on the mean absolute deviation d instead of the standard deviation. The H-distribution is derived: the frequency function is symmetric about zero, with central ordinate (1/φ) √ (1-n -1); asymptotically it is normal, N(0, √(φ/2)). An approximate formula for the calculation of the percent values is…

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