In this article
CHISQ.DIST.RT turns a chi-square statistic into a p-value: the chance of a result at least this extreme if nothing is going on.
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Syntax
=CHISQ.DIST.RT(x, deg_freedom)| Argument | What it means |
|---|---|
x |
Chi-square statistic |
deg_freedom |
Degrees of freedom |
Examples
Example 1
=ROUND(CHISQ.DIST.RT(A2,B2),4)Result: 0.05. See the worked example table below for more cases.
CHISQ.DIST.RT in practice
Where you will use it
- p-value from a hand-built chi-square statistic
- Goodness-of-fit checks
- Survey analysis
Worked example
| x | df | Formula | Result |
|---|---|---|---|
| 3.84 | 1 | =ROUND(CHISQ.DIST.RT(A2,B2),4) | 0.05 |
| 7.81 | 3 | =ROUND(CHISQ.DIST.RT(A3,B3),4) | 0.0501 |
| 2 | 4 | =ROUND(CHISQ.DIST.RT(A4,B4),4) | 0.7358 |
Results calculated in Excel.
Mistakes people make
| Mistake | What to do instead |
|---|---|
| Wrong degrees of freedom | For a table: (rows-1) x (columns-1) |
| Comparing to 0.05 the wrong way | Small p (below 0.05) suggests a real difference |
Related functions
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