威尔科克森符号秩检验能否修改零假设

在帮助手册里，威尔科克森符号秩检验的零假设为“signrank 在 5% 显著性水平下检验向量 x 中的数据来自中位数为零的分布“，能否通过编程或输入参数将零假设修改成”signrank 在 5% 显著性水平下检验向量 x 中的数据来自中位数小于等于0的分布”？

[Dyuman Joshi]

Approximate translation -

"In the help documentation, the null hypothesis for the Wilcoxon signed-rank test is stated as "signrank tests whether the data in vector x comes from a distribution with a median of zero at the 5% significance level." Is it possible to modify this null hypothesis through programming or input parameters to "signrank tests whether the data in vector x comes from a distribution with a median less than or equal to zero at the 5% significance level"?"