Calculates the inverse of the right-tailed chi-squared distribution.
Sample Usage
CHIINV(0.42, 2)
CHIINV(A2, B2)
Syntax
CHIINV(probability, degrees_freedom)
-
probability
- The probability associated with the right-tailed chi-squared distribution.- Must be greater than
0
and less than1
.
- Must be greater than
-
degrees_freedom
- The number of degrees of freedom of the distribution.
Notes
degrees_freedom
is truncated to an integer if a non-integer is provided.degrees_freedom
must be at least1
.- All arguments must be numeric.
CHIINV
is synonymous withCHISQ.INV.RT
.
See Also
CHIDIST: Calculates the right-tailed chi-squared distribution, often used in hypothesis testing.
CHISQ.INV: Calculates the inverse of the left-tailed chi-squared distribution.
CHISQ.INV.RT: Calculates the inverse of the right-tailed chi-squared distribution.
CHITEST: Returns the probability associated with a Pearson’s chi-squared test on the two ranges of data. Determines the likelihood that the observed categorical data is drawn from an expected distribution.
FINV: Calculates the inverse of the right-tailed F probability distribution. Also called the Fisher-Snedecor distribution or Snedecor’s F distribution.
TINV: Calculates the inverse of the two-tailed TDIST function.
Example
Suppose you want to find the cutoff for the chi-squared statistic associated with a p-value of 0.05
. With 4
degrees of freedom, you can consider any chi-squared statistic larger than 9.49
to be statistically significant.
1 | Probability | Degrees freedom | Solution |
---|---|---|---|
2 | 0.05 | 4 | 9.487729037 |
3 | 0.05 | 4 | =CHIINV(0.05, 4) |
4 | 0.05 | 4 | =CHIINV(A2, B2) |