A Coach Uses a New Technique in Training Middle Distance

question 25

Essay

A coach uses a new technique in training middle distance runners. The times, in seconds, for 8
different athletes to run 800 meters before and after this training are shown below. $$\begin{array} { r | c c c c c c c c } \text { Athlete } & \mathbf { A } & \mathbf { B } & \mathbf { C } & \mathbf { D } & \mathbf { E } & \mathbf { F } & \mathbf { G } & \mathbf { H } \\\hline \text { Before } & 115.2 & 114 & 116.4 & 119.8 & 110.9 & 112.4 & 111.5 & 117.3 \\\hline \text { After } & 112.9 & 112.7 & 114 & 120.6 & 109.1 & 109.1 & 107.9 & 113.4\end{array}$$ Does the conclusion that the technique is effective appear to be supported with statistical
significance? Does the conclusion that the technique is effective appear to have practical
significance?

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Definitions:

Total Project Cost

The complete financial expenditure required to finish a project, including all direct and indirect costs.

Quantity of Sales

The total number of units sold of a particular product or service within a specific timeframe.

First Year

The initial year of a particular time frame or activity, often used to set a baseline for comparison.

Profit Generated

The amount of money that remains from revenues after all the firm's expenses are subtracted.