Recent content by vasilist

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    Why does excel use 2 opposite ways for probability functions

    Hello, i am taking a grad level statistics, out of 5-6 years of an intro statistics classes and something got me confused. just functions are based in the a, some in the 1-a in excel. Let me explain If i want to find the Z critical, for two tailed testing, all i have to do is =normsinv(0,95)...