Enter category labels, counts and hypothesized proportions by clicking in the cells:
The table below shows the observed counts. Click on the cells in the last row to enter the hypothesized proportions, then press submit
The first row holds the category labels, which you can overwrite using your own labels.
Enter observed counts for the categories by clicking into the cells of the second row.
Enter the population proportions for the categories under the null hypothesis by clicking in the cells of the third row.
(Make sure the proportions add up to 1; if they don't, they are scaled so that they add up to 1.)