A Medical Statistician Wanted to Examine the Relationship Between the Amount

question 217

Essay

A medical statistician wanted to examine the relationship between the amount of sunshine (x) and incidence of skin cancer (y). As an experiment he found the number of skin cancers detected per 100 000 of population and the average daily sunshine in eight country towns around NSW. These data are shown below. $$\begin{array} { | l | c | c | c | c | c | c | c | c | } \hline \text { Average daily sunshine (hours) } & 5 & 7 & 6 & 7 & 8 & 6 & 4 & 3 \\\hline \text { Skin cancer per } 100000 & 7 & 11 & 9 & 12 & 15 & 10 & 7 & 5 \\\hline\end{array}$$ Draw a scatter diagram of the data and plot the least squares regression line on it.

---

Definitions:

Point C

Typically used in economics and finance as a specific point on a graph illustrating an equilibrium, costing or other calculated value.

Production Possibilities Curve

A graphical representation that shows the maximum combination of two goods or services that can be produced with available resources and technology.

Units of Guns

A quantification measure commonly used to denote the production or stockpile of firearms or, by extension, military capacities.

Units of Butter

A measure of quantity for butter, which can be used in economic examples to illustrate the concept of trade-offs or opportunity costs.