A High School Coach Uses a New Technique in Training $( 2.5,4.7 )$

question 34

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 metres before and after this training.A 98% confidence interval for the difference of the means before and after the training,μB - μA,was determined to be $( 2.5,4.7 )$

• A)We know that 98% of the middle distance runners shortened their times between 2.5 and 4.7 seconds after the training.
• B)We know that 98% 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 2.5 and 4.7 seconds.
• C)Based on this sample,with 98% confidence,the average time for the 800-metre run for middle distance runners at this high school is between 2.5 and 4.7 seconds longer after the new training.
• D)We are 98% confident that a randomly selected middle distance runner at this high school will have a time for the 800-metre run that is between 2.5 and 4.7 seconds shorter after the training than before the training.
• E)Based on this sample,with 98% confidence,the average time for the 800-metre run for middle distance runners at this high school is between 2.5 and 4.7 seconds shorter after the new training.

Recognize the importance of environmental factors and community infrastructure in disease prevention.

Understand the historical development of public health initiatives and their impact on community health.

Analyze the role of government and non-governmental organizations in the advancement of public health.

Identify key figures and their contributions to public health and nursing.

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Definitions:

Annually Compounded

Interest on an investment or loan calculated once per year, including interest on the initial amount and all previously accumulated interest.

Effective Rate

The actual interest rate of an investment or loan when compounding interest is taken into account, differing from the nominal rate by including the effects of compounding.

Financial Position

A snapshot of the resources, obligations, and the net worth of an individual or organization at a specific point in time.

Nominal Rate

The stated interest rate of a loan or investment, not taking into account the effect of compounding.