Res 710 Discussion

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: 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: 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? Requirements: 800 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? 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.