Researchers believe there may be a link between breast feeding and autism. They conducted an online survey and found that out of 100 people who reported being breast fed, 2 were diagnosed with autism. Of the 80 people who reported using a formula as infants, 12 were diagnosed with autism. Calculate² to determine if the incidence of autism is dependent on whether or not people are breast fed as infants.

For each step in your calculations, round your answers to the nearest hundredth before entering into the next step. Round your final answer to the nearest hundredth.