I’m trying to learn for my Mathematics class and I’m stuck. Can you help?
Part 1.
Frankfort-Nachmias and Leon-Guerrero (2018) noted that the precision of a confidence interval can be enhanced by increasing the sample size.
Write a 250- to 300-word response to the following:
- How does sample size affect the validity of a study?
- What factors determine the size of an ideal sample?
- How is the sample size calculated?
Reference: Frankfort-Nachmias, C., & Leon-Guerrero, A. (2018). Social statistics for a diverse society (8th ed.). Thousand Oaks, CA: SAGE Publications, Inc.
Part 2
Respond in 150 words or more
Sometimes students will choose a population that is so large the sample would also be large. I call it looking at an entire forest instead of looking at a single tree. What do you think a researcher could do to decrease the population size?
PART 3
Write a 250- to 300-word response to the following:
- Select one of the sampling designs introduced in this week’s readings.
- Give a brief introduction of the sampling design, and explain where you might apply it most successfully.
PART 4
Respond in 150 words or more
I agree that probability sampling is a good way to go. Can you think of research or a project it would work in?
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