Collect the grouping label and measurement together. Report both typical values and variation; acknowledge sampling limits.

Define a one-week target period; list all eligible people in each stated group; randomly select equal numbers from each list; use the same unit and measurement rule, and record every selected response.

Answer

Define a one-week target period; list all eligible people in each stated group; randomly select equal numbers from each list; use the same unit and measurement rule, and record every selected response.