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:

Ovaries

The female reproductive organs responsible for producing eggs (ova) and sex hormones, such as estrogen and progesterone.

Pituitary Gland

is a small, pea-sized gland located at the base of the brain, often termed the "master gland" because it controls the activities of other endocrine glands, influencing growth, metabolism, and reproductive functions.

Mammary Glands

Specialized organs in mammals that produce milk to feed young offspring.

Adaptive Thermogenesis

The process by which the body adjusts its basal metabolic rate in response to changes in environment or diet to regulate temperature and energy expenditure.