Question

lori puts up a sign for her business 500 meters from the main entrance. she once read that it takes the average adult 6 minutes to walk 500 meters. she decides to test this by having 200 adults walk the 500 meters from her sign to her store.

which of the following is the sample in loris experiment?

a.) the average of 6 minutes

b.) all adults

c.) the 500 meters

d.) the 200 adults

Explanation:

Define population and sample

In statistics and Experimental Design, the population represents the entire group that we want to draw conclusions about, while the sample is the specific group of individuals from whom data is actually collected. Here, the population of interest is all adults (or the average adult).

Identify the group being measured

Lori gathers data specifically from a subset of the population to test her hypothesis. She selects and observes a group of 200 adults to walk the distance.

Match with the options

The 200 adults who participate in the study represent the sample.

• "All adults" represents the population.
• "The average of 6 minutes" is a parameter or statistic.
• "The 500 meters" is a constant distance, not a group of subjects.

Therefore, the correct option is d.

Answer:

• a.) The average of 6 minutes
• b.) All adults
• c.) The 500 meters
• d.) The 200 adults (Correct answer)