It has been shown that significant differences between the standard deviations of subclasses of subjects, even when the means are identical, can lead to deviations in diagnostic sensitivity and diagnostic specificity for disease detection.Thus in these situations, there may be the need for separate reference intervals.What statistical test should be selected to determine the need for different reference intervals in this situation?

Question

Quizplus · Accepted Answer

The z-test evaluates the statistical significance of the difference between subclass means through the utilization of the standard deviation of each subclass.If a significant difference is determined by the z-test, separate reference intervals should be determined.

It Has Been Shown That Significant Differences Between the Standard