Explain if the variable is categorical or quantitative.

USE THIS SOURCE
Link for the article – https://www.ajpe.org/content/78/9/163.abstract

The Integrative Learning Assignment must be typed and include the following.
(a.) Brief summary of what is discussed in the article.
b= Discuss the statistics involved in the article.
describe at least 5 statistical details. The statistical details must be well explained, using language and notation consistent with what is used(a.)

You can discuss about of the following :
Is it an Observational Study or Statistical Experiment described in the article? Explain why.
(b.) Describe at least 2 variables discussed in the article.
Explain if the variable is categorical or quantitative.
(c.) Describe how the data is visualized? (ie. bar charts, pie graphs, bubble plot, time series plot, spaghetti plot, etc…) Also, indicate if the data visualizations have any interactive features(animations, mouse hover interactive)?
(d.) Does the article provide any confidence intervals? Does the article provide any Margin of Error? Interpret 1 confidence interval or margin of error. ”We are 95% confident…..”
(e.) Is there a scatterplot described in the article? De- scribe the association: positive or negative linear as- sociation
(f.) Does the article have any potential sample collection bias? If so, identify and explain how you think it may effect the results described in the article.
(g.) Hypothesis tests: Are there any p-values described in the article? What is the significance level? If possible, identify the null and alternative Hypothesis

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