Returns the inverse of the right-tailed probability of the chi-squared distribution.
expression . ChiSq_Inv_RT( Arg1 , Arg2 )
expression A variable that represents a WorksheetFunction object.
| Name | Required/Optional | Data Type | Description |
|---|---|---|---|
| Arg1 | Required | Double | A probability associated with the chi-squared distribution. |
| Arg2 | Required | Double | The number of degrees of freedom. |
Double
If probability = ChiSq_Dist_RT(x,...), then ChiSq_Inv_RT(probability,...) = x. Use this function to compare observed results with expected ones in order to decide whether your original hypothesis is valid:
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If either argument is nonnumeric, ChiSq_Inv_RT generates an error.
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If probability < 0 or probability > 1, ChiSq_Inv_RT generates an error.
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If degrees_freedom is not an integer, it is truncated.
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If degrees_freedom < 1 or degrees_freedom ? 10^10, ChiSq_Inv_RT generates an error.
Given a value for probability, ChiSq_Inv_RT seeks that value x such that ChiSq_Dist_RT(x, degrees_freedom) = probability. Thus, precision of ChiSq_Inv_RT depends on precision of ChiSq_Dist_RT. ChiSq_Inv_RT uses an iterative search technique. If the search has not converged after 64 iterations, the function generates an error.