正态总体均值的假设检验

两个总体

方差相等

t. test ( x, y,

alternative = c(“two.sided”1ess"greater"),

mu = 0, paired = FALSE, var.equal = TRUE,

conf.level = 0.95,…)

方差不等

t. test ( x, y,

alternative = c(“two.sided”1ess"greater"),

mu = 0, paired = FALSE, var.equal = FALSE,

conf.level = 0.95,…)

成对数据t检验

t. test ( x-y,

alternative = c(“two.sided”1ess"greater"),

mu = 0, paired = FALSE, var.equal = FALSE,

conf.level = 0.95,…)

正态总体方差的假设检验

单个总体

var. test ( x, y = NULL,

ratio = 1, alternative = c("two.sided"1ess"greater"),

conf.1evel = 0.95, ...)

两个总体

var. test ( x, y,

ratio = 1, alternative = c("two. sided"1ess"greater"),

conf.1evel=0.95, ...)

二项分布总体的假设检验

binom.test ( x, n, p = 0.5,

alternative = c("two.sided"1ess"greater"),

conf.level = 0.95)