HLT362 All Discussions latest 2018 January

HLT362 Week 1 Discussion 1 & 2 latest 2018 January

dq 1

How can graphics and/or statistics be used to misrepresent data? Where have you seen this done?

dq 2

Explain each sampling technique discussed in the "Visual Learner: Statistics" in your own words, and give examples of when each technique would be appropriate.

HLT362 Week 2 Discussion 1 & 2 latest 2018 January

dq 1

Explain the importance of random sampling. What problems/limitations could prevent a truly random sampling and how can they be prevented?

dq 2

Explain each sampling technique discussed in the "Visual Learner: Statistics" in your own words, and give examples of when each technique would be appropriate.

HLT362 Week 3 Discussion 1 & 2 latest 2018 January

dq 1

Explain when a z-test would be appropriate over a t-test.

dq 2

Researchers routinely choose an alpha level of 0.05 for testing their hypotheses. What are some experiments for which you might want a lower alpha level (e.g., 0.01)? What are some situations in which you might accept a higher level (e.g., 0.1)?

HLT362 Week 4 Discussion 1 & 2 latest 2018 January

dq 1

How would you explain the analysis of variance, assuming that your audience has not had a statistics class before?

dq 2

What is an interaction? Describe an example and identify the variables within your population (work, social, academic, etc.) for which you might expect interactions?

HLT362 Week 5 Discussion 1 & 2 latest 2018 January

dq 1

Describe the error in the conclusion. Given: There is a linear correlation between the number of cigarettes smoked and the pulse rate. As the number of cigarettes increases the pulse rate increases. Conclusion: Cigarettes cause the pulse rate to increase.

dq 2

Now that you are familiar with the basic concepts of statistics, what are some examples of when you have seen or heard statistics used inappropriately?