A study is conducted in which a gold standard invasive (i.e., blood drawn) method of monitoring glucose in diabetic patients is compared to a newly developed noninvasive (i.e., no blood drawn) monitoring method in order to determine whether the two system produce equivalent results. To this end, each of the monitoring devices is simultaneously employed to assess glucose levels in ten diabetic patients. The two devices will be considered equivalent if the mean difference in measured glucose levels produced by the two methods is between plus and minus four points. The two measures for each patient are provided below.