st: Testing equality of means

["Alex Edmans" <alex_edmans@hotmail.com>]

Sorry for such a simple question. I have four separate data series (call
them A B C D) and know I can easily show the means of each series by using
"sum A-D". How can I conduct a t-test that the means of series A and B are
equal, and an F-test that all of A, B, C and D are equal?

Thanks, Yvonne


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