12) A local restaurant wants to know if there is a relations…

12) A local restaurant wants to know if there is a relationship between entree preferences and dessert preferences. The following contingency table summarizes orders from  customers. If the null hypothesis is true, the test statistic follows a chi-squared distribution with _____ degrees of freedom.   Salads Chicken Pasta Fish Casseroles Cake 9 34 22 11 21 Fruit 43 97 30 7 23 Souffles 22 45 12 21 12 Ice cream 50 12 13 15 15