Th row in the towel! Which paper towel brand absorbs best

Chapter 1, Problem 1.33

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Th row in the towel! Which paper towel brand absorbs best? Samantha, a 12-year-old, carried out a science project to compare the absorbency of four brands of paper towelsBounty, Scott, Sparkle, and Western Family. She started with four individual sheets of each brand. One at a time, Samantha placed a sheet of paper towel in a container with 200 milliliters of water. Aft er 15 seconds, she removed the paper towel from the water and squeezed out as much water as she could into a graduated cylinder. Samantha then determined the amount of water that had been absorbed.19 Here are the data she recorded: Bounty 33 31 49 32 Scott 42 34 60 36 Sparkle 53 36 47 33 Western Family 47 26 41 31 (a) Identify two sources of variation in this study. Give specifi c evidence to show that each of these types of variation is present. (b) Write a brief report describing Samanthas study. Follow the four-step statistical problem-solving process