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

100 lamps on each floor chosen randomly
100 lamps on each floor chosen randomly

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

Answer 1

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

100 lamps on each floor chosen randomly.

This method ensures that each floor is represented in the sample, giving a more comprehensive estimate of the overall condition of the lamps in the hotel. It minimizes bias that could occur if only certain types of rooms or locations were sampled.