3. Using the data provided above, calculate the gastrointestinal (GI) illness attack in persons who ate the combination of prime rib + porterhouse steak. Then, using the data provided above and your previous calculations for this problem, which of the food items or combination of food items is/are most likely to contain the bacteria or virus causing this Gl illness. Explain your choice. Total Number of Persons Who Ate Each Specified Combination of Food Items at Ben's Steakhouse Ate prime rib Did not eat prime rib Ate porterhouse steak 172 231 105 Did not eat porterhouse steak 418 Total Number of Persons Who Ate Each Specified Combination of Food Items at Ben's Steakhouse and Who Later Became Sick with Gastrointestinal Symptoms Ate porterhouse steak Ate prime rib 145 Did not eat porterhouse steak 139 Did not eat prime rib 182 30