Does anyone know how to do the inverse of the Student's t model for a confidence interval to find the critical value of t when only given a confidence level and the degrees of freedom? I know the TIs will do it, but I cannot figure out how to do this on the Casio CFX-9850GB PLUS.
Here is an example:
Find the critical value of t for a 90% confidence interval with df = 17.
Can anyone help? Thank you.
Cori
Student's T Model Help!
Started by
cori
, Nov 19 2006 06:33 PM
1 reply to this topic
#2
R00KIE
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HP49G ROM 1.24; CASIO CFX-9850GB PLUS;CASIO FX-6300G; CASIO FX-82TL
Posted 21 November 2006 - 07:52 PM
you could try the solve function
like solve(T(a,x,c),x)
use the appropriate function (t-student), but i warn you, it will be slow
like solve(T(a,x,c),x)
use the appropriate function (t-student), but i warn you, it will be slow
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