Use the Following Information to Answer the Question

question 18

Multiple Choice

Use the following information to answer the question. A sprint duathlon consists of a 5 km run, a 20 km bike ride, followed
by another 5 km run. The mean finish time of all participants in a recent large duathlon was 1.67 hours with a standard deviation of 0.25 hours. Suppose a random sample of 30 participants in the 40-44 age group was taken and the mean finishing time was found to be 1.62 hours with a standard deviation of 0.40 hours.
-Suppose the process of taking random samples of size 30 from the 40-44 age group is repeated 200 times and a histogram of the 200 sample means is created. Which statement best describes the
Shape of the histogram?

• A) The histogram will be roughly bell-shaped.
• B) The histogram will be unimodal.
• C) The histogram will be roughly symmetrical.
• D) All of these statements are true.

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Definitions:

Clotting Disorder

A condition that affects the blood's ability to form clots, leading to excessive bleeding or clotting issues.

Blood Pressure

The pressure exerted by circulating blood upon the walls of blood vessels, often measured for diagnosis since it is related to the force and rate of the heartbeat and the diameter and elasticity of the arterial walls.

Thrombus

A blood clot that forms in a blood vessel and remains there, which can block blood flow and cause health issues.