Peripheral neuropathy is a complication of uncontrolled diabetes. The num- ber of cases of peripheral neuropathy among a control group of 35 diabetic patients was 12. Among a group of 11 patients who were taking an oral agent to prevent hyperglycemia, there were three cases of peripheral neu- ropathy. Is the proportion of patients with peripheral neuropathy comparable in both groups? Perform the test at a = 0.05.