There Are Different Approaches to Fitness Training A Estimate with 95% Confidence the Ratio of the Variances

question 6

Essay

There are different approaches to fitness training. To judge which one of two approaches is better, 200 25-year-old men were randomly selected to participate in an experiment. For four weeks, 100 men were trained according to approach 1 while the other 100 men were trained according to approach 2. The percentage improvement in fitness was measured for each man and the statistics shown below were computed. The percentage figures are known to be normally distributed. $$\begin{array} { | c | c | } \hline \text { Approach 1 } & \text { Approach } 2 \\\hline \bar { x } _ { 1 } = 27.3 & \bar { x } _ { 2 } = 33.6 \\\hline s _ { 1 } ^ { 2 } = 47.614 & s _ { 2 } ^ { 2 } = 28.09 \\\hline\end{array}$$ a. Estimate with 95% confidence the ratio of the variances of the percentage improvement in fitness, and briefly describe what the interval estimate tells you.
b. Do these results allow us to conclude at the 5% significance level that approach 2 is superior?

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Definitions:

Sympathetic Introspection

A methodological approach in which the researcher tries to understand the feelings and perspectives of others by mentally placing themselves in the other's position.

The Looking Glass Self

A sociological concept that suggests an individual's self grows out of society's interpersonal interactions and the perceptions of others.

The Me

A concept in sociology, referring to the part of an individual's self that is aware of the social expectations and attitudes of others.

The I

A term that can refer to the self as subject, the aspect of one's self that is conscious and thinks, differing from the observed self or "me."