Question

In Exercises 21–24, refer to the data in the table below. The entries are white blood cell counts (1000 cells,ML) and red blood cell counts (million cells,ML) from male subjects examined as part of a large health study conducted by the National Center for Health Statistics. The data are matched, so that the first subject has a white blood cell count of 8.7 and a red blood cell count of 4.91, and so on.

Subject

	1	2	3	4	5
White	8.7	5.9	7.3	6.2	5.9
Red	4.91	5.59	4.44	4.8	5.17

Source of the Data Considering the source of the data, does that source appear to be biased in some way?

Short answer

No, the source of data does not appear to be biased.

Step-by-step solution

Given information

The National Center for Health Statistics gathered records of blood cell counts from five subjects through a large health study.

Step 2:Meaning of biasedness at source

The records of data are biased if the source or mode of collection is not random. In other cases, the researcher or the method of sampling might show some level of partial behavior.

The organization conducting the sampling or study plays an essential role in revealing the biasedness at the source.

Step 3:Explanation 

The organization conducting the study is the National Center for Health Statistics. It is a government organization that can be relied upon for the sampling methods as they work with the aim of public welfare and health.

Moreover, the study includes subjects who were part of a large health study. Thus, the sample is a true representative of the population.

Thus, there is no scope for biasedness at the source of the data.