Obtaining the P values for the t stat

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Ahmed Abdulla
Ahmed Abdulla il 10 Giu 2020
Commentato: Km Shraddha il 14 Gen 2025
I have both the tstat and the degrees of freedom, is there a quick way to find the P value of a two tailed hypothesis at a significance of 0.05

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dpb
dpb il 10 Giu 2020
p = 1-tcdf(t,n-1) % Probability of larger t-statistic
requires Statistics Toolbox...
  2 Commenti
Jamol Bahromov
Jamol Bahromov il 17 Set 2021
Shouldn't p multiplied by two for a two-tailed p-value?
O.Hubert
O.Hubert il 24 Ott 2022
It should be noted that t should be positive to obtain sensible results and yes, p should be multiplied by 2 to get a two-tailed test.
To have t positive, replace it by abs(t).

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