The Woodland Paper Company producespaper for the newspaper industry. As a finalstep in the process, the paper passes througha machine that measures various productquality characteristics. When the paperproduction process is in control, it averages20 defects per roll.a. Set up a control chart for the number ofdefects per roll. For this example, usetwo-sigma control limits.b. Five rolls had the following number ofdefects: 16, 21, 17, 22, and 24, respec-tively. The sixth roll, using pulp from adifferent supplier, had 5 defects. Is thepaper production process in control?

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