The Following Minitab Display Results from a Study in Which

question 25

Essay

The following Minitab display results from a study in which three different teachers taught calculus classes of five different sizes. The class average was recorded for each class. Assuming no effect from the interaction between teacher and class size, test the claim that class size has no effect on the class average. Use a 0.05 significance level. $$\begin{array} { l r r r c c } \text { Source } & \text { DF } & \text { SS } & { \text { MS } } & \text { F } & \text { p } \\\text { Teacher } & 2 & 56.93 & 28.47 & 1.018 & 0.404 \\\text { Class Size } & 4 & 672.67 & 168.17 & 6.013 & 0.016 \\\text { Error } & 8 & 223.73 & 27.97 & & \\\text { Total } & 14 & 953.33 & & &\end{array}$$

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Definitions:

Gross Domestic Product

The total market value of all final goods and services produced within a country in a given period, used as a broad measure of economic activity.

Exports

Goods or services produced in one country and sold to buyers in another country, contributing to the exporting country's gross domestic product.

Imports

Goods and services brought into a country from abroad for sale.

Gross Domestic Product

Gross Domestic Product (GDP) is the total monetary value of all goods and services produced within a country's borders in a specific time period, a primary indicator of economic health.