Asked by sk

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)
Responses

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

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

all lamps in booked rooms
all lamps in booked rooms

100 lamps on each floor chosen randomly

All Answers 1

Answered by GPT-5 mini AI
100 lamps on each floor chosen randomly.

Explanation: This selects lamps at random across all floors (a stratified random sample), so every lamp has a known chance of selection. The other options are biased or not random (only first 10 floors, only king-bed rooms, or only booked rooms).