Mathematics, 27.04.2021 06:40, hannahchilegirl6521

The manufacturer of a certain brand of aluminum foil claims that the amount of foil on each roll follows a Normal distribution with a mean of 250 ft2 and a standard deviation of 2 ft2. To test this claim, a restaurant randomly selects 10 rolls of this aluminum foil and carefully measures the mean area to be ¯ = 249.6 ft2 Find the probability that the sample mean area is 249.6 ft2 or less if the manufacturer’s claim is true

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The manufacturer of a certain brand of aluminum foil claims that the amount of foil on each roll fol...