Question

In Exercises 17–20, refer to the sample of body temperatures (degrees Fahrenheit) in the table below. (The body temperatures are from a data set in Appendix B.)

Subject

	1	2	3	4	5
8 AM	97	98.5	97.6	97.7	98.7
12 AM	97.6	97.8	98	98.4	98.4

Context of the Data: Refer to the table of body temperatures. Is there some meaningful way in which each body temperature recorded at 8 AM is matched with the 12 AM temperature?

Short answer

Yes, each body temperature recorded at 8 AM and 12 AM belongs to a common experimental unit.

Step-by-step solution

Given information

The table shows body temperatures recorded twice a day for five subjects.

The interpretation of the table

The rows show the values recorded at 8 AM and 12 AM.

Any pair of values taken at 8 AM and 12 AM is recorded against a subject of the study. The columns in the table represent the subjects proposed to be recorded for the study.

Meaning of matched observations

A matched set of observations is recorded in a way that each observation is related to a common unit of the experiment (or subject).If only two sets of variables are recorded from each experimental unit, they are referred to as paired or matched paired values.

Step 4:The relationship between the body temperatures

As per the interpretation of the table, the body temperatures are matched with one of the subjects.

Thus, the body temperatures are paired values.