Researchers wanted to determine if carpeted rooms contained more bacteria than uncarpeted rooms. To determine the amount of bacteria in a room, researchers pumped the air from the room over a Petri dish at the rate of 1 cubic foot per minute for eight carpeted rooms and eight uncarpeted rooms. Colonies of bacteria were allowed to form in the 16 Petri dishes. The results are in table below Carpted rooms Uncarpted rooms Bacteria/cubic foot Bacteria/cubic foot 11.80 12.10 10.80 12.00 7.10 3.80 14.60 10.10 8.20 8.30 10.10 11.10 13.00 7.20 14.00 13.70 Points Questions/Tasks 2 1. What is the explanatory variable in this study? What is the response variable? 3 2. Use the analysis tool pack to conduct the appropirate t-test. 5 3. conduct the hypothesis test and draw conclusion