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Does the maker of M&Ms® (Mars, Inc.) use the same proportion of red candies in its...

Does the maker of M&Ms® (Mars, Inc.) use the same proportion of red candies in its plain and peanut varieties? A random sample of 55 plain M&Ms contained 14 red candies, and another random sample of 40 peanut M&Ms contained 7 red candies. (Use p1 for the proportion of red candies in plain M&Ms and p2 for the proportion of red candies in peanut M&Ms.)

(a) Construct a 95% confidence interval for the difference in the proportions of red candies for the plain and peanut varieties (p1 − p2). (Round your answers to three decimal places.) to

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