A hotel maintenance crew wants to estimate how many of the 12,000 lamps in their 30-story hotel need a new light bulb. Which of the following is a random sample of lamps to be inspected?(1 point)

Question

Responses

all lamps in booked rooms
all lamps in booked rooms

all lamps from the rooms with king-sized beds
all lamps from the rooms with king-sized beds

400 lamps on the first 10 floors
400 lamps on the first 10 floors

100 lamps on each floor chosen randomly

Answer 1

The best option for a random sample of lamps to be inspected is:

100 lamps on each floor chosen randomly.

This option ensures that the sample is representative of the entire hotel, as it includes a variety of lamps from all floors rather than focusing on a specific subset of rooms or types of beds. Randomly selecting lamps from each floor helps minimize bias and gives a better estimation of how many lamps need new light bulbs across the entire hotel.