Share
Explore BrainMass

Statistics

1 -- What are the key points to consider when determining sample size? Why be concerned about determining the size of the sample? Explain.

2 --What is the impact of non-response to research efforts (positive or negative) and what measures can be undertaken to prevent its effects on primary data collection? Explain.

3 --Why is the level of measurement important in research? Explain. Identify and give an example of each.

4 --Discuss and expand upon what is needed for validity and reliability of samples, and then discuss the following type of popular proportion statement: SPAM is favored in the polls by 82% (margin of error +/- 4%) over steaks. How can this be JUNK statistics? (Use technical reasoning; your â??gutâ? does not count) Assume the values used to determine margin of error are done correctly. Explain answer.

5. Construct effective questionnaires and surveys

â?¢ What are the most important concepts you have learned from construct effective questionnaires and surveys?

â?¢ What would you recommend to your management/leadership based construct effective questionnaires and surveys?

â?¢ How will construct effective questionnaires and surveys impact you personally and professionally?

â?¢ What are the value-added construct effective questionnaires and surveys or what difference can these concepts make to your organization? (e.g., financial savings, productivity improvements, expanded marketing activities).

Solution Preview

1 -- What are the key points to consider when determining sample size? Why be concerned about determining the size of the sample? Explain.

The key points to consider when determining sample size is important. This includes that of location in which the study takes place. One has to keep in mind each individual's education level and background as well as their socioeconomic status. These determine whether or not a person actually will want to participate or not in the research set forth by the researcher.

A person has to become concerned about determining the sample size for a number of reasons. This could hinder him or her in obtaining the necessary data to make an effective analysis. One will need to make sure that people are open to the idea of participating in it. Not only that, but also the fact that people will question the researcher on the validity and reliability of it, especially if their job is on the line due to confidentiality. These are all issues that are worth considering.

2 --What is the impact of non-response to research efforts (positive or negative) and what measures can be undertaken to prevent its effects on primary data collection? Explain.

When a non response occurs, this indicates that someone did respond, which is how I view it; therefore, a person can use that data as a means in which to analyze and discuss in his or her own research results. Furthermore, this is neither positive or negative, which indicates that he or she will ...

Solution Summary

This solution discussed sample size, non-response, level of measurement, reliablity and validity as well as questionaires and surveys.

$2.19