Question

A researcher is studying the effects of caffeine on exam scores of college students. In this study:

What would be the population and sample of this research? Extrapolate your views of the advantages and disadvantages of samples and populations to this example.

Why would the researcher want to use a sample or a population in this study?

Answer 1

The population is all college student exam scores.
The sample is just sample would be some selected exam scores.
Advantage of using population: precise estimate
Main disadvantage of using population: more work, collate every exam score of current college students.
Converse for sample, main advantage, easier to collate because fewer exam scores
Main disadvantage, could have bias introduced if sample size is too small.

Answer 2

thank you so much