Dear Sir/Madam,
I am trying to use calculation for two-tailed inverse of the student`s
t-distribution function presented by Excel functions like
=TINV(probability, deg_freedom).
For instance: The Excel function =TINV(0.0000408831,1221) = returns
4.0891672.
Would you like to show me a manual calculation for this?
Appreciate your helps in advance.
Cheers! Andre
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