Question

Jenny wants to determine if a new brand name washing detergent is better than her old detergent. She washes ten dirty t-shirts with the new washing detergent. After washing, she thinks they are cleaner using the new detergent. What can she do to be sure the new washing detergent works better than the old detergent? Enter your answer in the space provided.

Answer 1

Jenny can wash a load with the old brand and a load with the new brand and compare