The goal of a study by Tahmassebi and Curzon (A-13) was to determine if drooling in children with cerebral palsy is due to hypersalivation. One of the procedures toward that end was to examine the salivary buffering capacity of cerebral palsied children and controls. The following table gives the results.

Buffering Capacity Group Medium High Cerebral palsy 2 8 Control 3 7 Source: J. F. Tahmassebi and M. E. J. Curzon, “The Cause of Drooling in Children with Cerebral Palsy—Hypersalivation or Swallowing Defect?”
International Journal of Paediatric Dentistry, 13 (2003), 106–111.
Test for a significant difference between cerebral palsied children and controls with respect to high or low buffering capacity. Let a ¼ .05 and find the p value.