Question

select the correct answer.
a sporting goods store specializes in mountain bikes. each week, two dozen mountain bikes are randomly selected from the stores warehouse to undergo a performance test.
what is the population for the performance test?
a. the population is the salespersons at the store.
b. the population is all of the merchandise sold by the store.
c. the population is the mountain bikes that are not randomly selected.
d. the population is all of the mountain bikes in the stores warehouse

Explanation:

A population in statistics refers to the entire group of individuals or items that we are interested in studying. In this case, the store specializes in mountain bikes, and the performance test is conducted on mountain bikes. The population should be all of the mountain bikes in the store's warehouse because that is the entire group from which the sample (the two - dozen randomly selected bikes each week) is drawn.

• Option A: The salespersons at the store are not relevant to the performance test of mountain bikes.
• Option B: The merchandise sold by the store is a broad category and not specific to mountain bikes.
• Option C: The mountain bikes that are not randomly selected are just a subset of the population (the warehouse bikes) and not the entire population.

Answer:

D. The population is all of the mountain bikes in the store's warehouse.