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t-test critical value lookup

vCalc Reviewed
CV=f(df,tails,alpha)CV=f(df,tails,alpha)
(df)degrees of freedom(df)degrees of freedom
(α)alpha value(α)alpha value
(tails)number of tails(tails)number of tails
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Statistics

The t-test Critical Value calculator provides the critical value for the Student's t test.
 
INSTRUCTIONS: Enter the following:

  • (df)  This is the degrees of freedom (integer greater than zero)
  • (α) This is the alpha value (.01 or .05)
  • (tails)  Choose one or two tails

Critical Value: The calculator returns the critical value (CV) for the t-test.