8. (6) Researchers believe that human male infertilityhas increased significantly in recent years due to exposure to BPAand related chemicals. A recent study provided evidence for this byinterviewing lab technicians at a sperm donor bank in Chicago,which purchases sperm mainly from college students from a smalllocal college. They report that the number of donors withacceptable sperm counts (at least 15 million sperm per milliliterof semen) has declined by almost 60% since 1980. Relate thefollowing questions to this information:
- Define sample vs. population and explain what each would be inthis study.
- Sample is one selection from a population. Sample would be
- Define Random Variation and explain how it could be a factor inmaking conclusions about sperm quality and quantity?
- Define confounding factor, and list one potential Confoundingfactor in using this sample to represent the population.
- Provide an argument for why this sample might not containindependent data points.
- Define sampling error and discuss whether it might be occurringin this study.
