A Professor of Economics Wants to Study the Relationship Between

question 14

Essay

A professor of economics wants to study the relationship between income y (in $1000s) and education x (in years). A random sample of eight individuals is taken and the results are shown below. $$\begin{array} { | l | c | c | c | c | c | c | c | c | } \hline \text { Education } & 16 & 11 & 15 & 8 & 12 & 10 & 13 & 14 \\\hline \text { Income } & 58 & 40 & 55 & 35 & 43 & 41 & 52 & 49 \\\hline\end{array}$$ Calculate the Pearson correlation coefficient. What sign does it have? Why?

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Definitions:

Digestion of Fat

The biochemical process of breaking down fats in the body into fatty acids and glycerol, which can be used for energy or storage.

Helicobacter Pylori

A type of bacteria that infects the stomach lining and is the leading cause of ulcers and stomach cancer.

Bland Diet

A dietary regimen consisting of foods that are gentle on the digestive system, used to treat or prevent gastric discomfort.

Ulcers

Sores that develop on the lining of the stomach, small intestine, or esophagus, often painful and caused by factors like stress, infection, or certain medications.