Hospital floors: Hospital floors are usually bare tiles instead of carpet. Carpets will decrease noise...

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Hospital floors: Hospital floors are usually bare tiles instead of carpet. Carpets will decrease noise but might increase germ growth.To study this, researchers installed carpet in 8 of 16 hospital rooms. They randomly selected the rooms to carpet.The other rooms had bare tiles.After two weeks of normal use, they collected air samples from the rooms and counted the bacteria in each sample.Which of the following is the response variable?Air samplesHospital roomsType of floor coveringBacteria count

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