Examine the table of cell frequencies and predict what terms must be in the model to explain the pattern of differences. Maimaris et al. concluded “No child who wore a helmet at the time of the...

Examine the table of cell frequencies and predict what terms must be in the model to explain the pattern of differences.

Maimaris et al. concluded “No child who wore a helmet at the time of the accident sustained a head injury.” Does that seem like a conclusion that would follow from your analysis?