A High School Coach Uses a New Technique in Training $95 \%$

question 6

Multiple Choice

A high school coach uses a new technique in training middle distance runners. He records the times for 4 different athletes to run 800 meters before and after this training. A $95 \%$ confidence interval for the difference of the means before and after the training, $\mu _ { B } - \mu _ { A }$ , was determined to be $( 2.6,4.3 )$ .

• A) We are \(95 \%\) confident that a randomly selected middle distance runner at this high school will have a time for the 800 -meter run that is between \(2.6\) and \(4.3\) seconds shorter after the training than before the training.
• B) We know that \(95 \%\) of the middle distance runners shortened their times between \(2.6\) and \(4.3\) seconds after the training.
• C) Based on this sample, with \(95 \%\) confidence, the average time for the 800 -meter run for middle distance runners at this high school is between \(2.6\) and \(4.3\) seconds longer after the new training.
• D) Based on this sample, with \(95 \%\) confidence, the average time for the 800 -meter run for middle distance runners at this high school is between \(2.6\) and \(4.3\) seconds shorter after the new training.
• E) We know that \(95 \%\) of all random samples done on runners at this high school will show that the mean time difference before and after the training is between \(2.6\) and \(4.3\) seconds.

Evaluate the rhetoric of World War II and its influence on post-war ideals of human rights and freedom.

Assess the impact of World War II on ethnic minorities in America and the foundations it laid for future civil rights movements.

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Definitions:

Longitudinal Technique

A research design that involves repeated observations of the same variables over a period of time, often years or decades.

Novelty Technique

A method or strategy employed to capture interest or attention through the introduction of new or unusual elements.

Integrity Versus Despair

A late-life crisis according to Erik Erikson’s theory of psychosocial development, where individuals reflect on their life and either achieve a sense of integrity or experience despair.

Generativity Versus Stagnation

A stage in Erikson's theory of psychosocial development where adults seek to contribute to society and support future generations, versus a sense of unproductivity.