r语言t检验实例程序及答案.pdf
常将有日思无日，莫待无时思有时。增广贤文云路鹏程九万里，雪窗萤火二十年。王实甫(a11,b11,alternative=greater)Welch Two Sample t-test data:a11 and b11 t=,df=,p-value=alternative hypothesis:true difference in means is greater than 0 95 percent confidence interval:Inf sample estimates:mean of x mean of y (a11,c11,alternative=greater)Welch Two Sample t-test data:a11 and c11 t=,df=,p-value=alternative hypothesis:true difference in means is greater than 0 95 percent confidence interval:Inf sample estimates:mean of x mean of y (b11,c11,alternative=greater)Welch Two Sample t-test data:b11 and c11 t=,df=,p-value=alternative hypothesis:true difference in means is greater than 0 95 percent confidence interval:Inf sample estimates:mean of x mean of y (a12,b12,alternative=greater)Welch Two Sample t-test data:a12 and b12 大丈夫处世，不能立功建业，几与草木同腐乎？罗贯中谋事在人，成事在天！增广贤文t=,df=,p-value=alternative hypothesis:true difference in means is greater than 0 95 percent confidence interval:Inf sample estimates:mean of x mean of y (a12,c12,alternative=greater)Welch Two Sample t-test data:a12 and c12 t=,df=,p-value=alternative hypothesis:true difference in means is greater than 0 95 percent confidence interval:Inf sample estimates:mean of x mean of y (b12,c12,alternative=greater)Welch Two Sample t-test data:b12 and c12 t=,df=,p-value=alternative hypothesis:true difference in means is greater than 0 95 percent confidence interval:Inf sample estimates:mean of x mean of y
