Excel Function : CHISQ.INV.RT
Returns the inverse of the one-tailed probability of the chi-squared distribution
Microsoft Excel Reference Page
Syntax and Description of the CHISQ.INV.RT Excel Function
The syntax for the CHISQ.INV.RT function in Microsoft Excel is: = CHISQ.INV.RT( probability, degrees_of_freedom ) where "probability" is the probability of the chi-squared distribution, "degrees_of_freedom" is the number of degrees of freedom.
About CHISQ.INV.RT Excel Function
The CHISQ.INV.RT function returns the inverse of the right-tailed probability of the chi-squared distribution.