A Random Sample of 30 Long Distance Runners Aged 20-25

question 27

Short Answer

A random sample of 30 long distance runners aged 20-25 was selected from a running club.
The resting heart rates (in beats per minute) of the runners are shown below. Estimate the mean resting heart rate for the population of long distance runners aged 20-25. Give the 95% confidence interval to one decimal place. The sample mean is 68 and the sample standard deviation is 8.133. $$\begin{array} { l l l l l l l l l l } 62 & 70 & 61 & 64 & 75 & 54 & 72 & 68 & 74 & 54 \\75 & 70 & 62 & 66 & 79 & 73 & 81 & 60 & 66 & 76 \\67 & 62 & 62 & 73 & 70 & 86 & 76 & 60 & 53 & 69\end{array}$$

---

Definitions:

Creation Legend

Mythological stories or folk tales found in various cultures that describe the origins of the world, the universe, or humanity.

Gold-Covered Wooden Staff

An artifact typically signifying authority or ceremonial use, featuring a wooden core overlaid with gold.

Emblem

A symbolic object or design that represents a concept, organization, or nation, often imbued with deeper meanings or values.

Dogon People

An ethnic group from Mali, known for their rich culture, astronomical knowledge, traditional sculptures, and cliff dwellings.