dental claims experience was collected on 6,480 policies. there were a total of 9,720 claims on these policies. the following table shows the number of dental policies having varying numbers of claims. number of claims number of policies 0 1,282 1 2,218 2 1,856 3 801 4 235 5 81 6 or more 7 total 6,480 calculate the chi-squared statistic to test if a poisson model with no predictors provides an adequate fit to the data.