Mathematics Homework Help

You need to post 1 unique article/explanation about an experiment OR 1 unique article/explanation about an observational study. You should begin a new thread with your topic, and include:1.) A link to the website or upload the relevant file.2.) The requested explanation or calculation 3.) Format your post like this: “Observational Study: In this article, Gallup polled 200 people about ….” so that it is clear to everyone which topic you have chosen.4.) Use “Observational Study” or “Experiment” in the title (no quotation marks necessary).

Here are the details on the articles and discussion you should post to a new thread (choose only ONE):

1.) Observational Study:a.How was the sample collected? (Use appropriate statistics terminology: Simple Random Sample, Stratified Random Sample, Cluster Sample, Voluntary Response)

b. What is the sample size?

c.What was the response rate?

d.What variables were measured?

e.Were the results displayed in a graph? If so, what type of graph was used? If not, what type of graph would be appropriate for displaying this data?

f.What are potential sources of bias?

g.What could be done to improve this study?

2.) Experiment:

a.Who or what is in the sample? What is the sample size?

b. What is/are the treatments?

c.What is the design of the experiment? Is it one we learned in class?

d. Were the three principles of good experimental design (Randomization, Replication, Comparison/Control) used?

e. What are the response variables? Are these variables categorical or quantitative?

f.Were the results shown with a graph? If so, what kind of graph was used? If not, what kind of graph would be appropriate for displaying this data?

g.What are some potential lurking variables? Explain your reasoning.