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Adobe bricks for construction have a mean weight of 12.1 pounds, with standard deviation 1.1 pounds. Assume that the weights of adobe bricks are independant

Adobe bricks for construction have a mean weight of 12.1 pounds, with standard deviation 1.1 pounds. Assume that the weights of adobe bricks are independant normal random variables. The company wants to ship the bricks in packages and guarentees that the average brick weight in a package is between 12.0 and 12.2 pounds. How many bricks should be put in each package so?

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