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Standard deviation of rods

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a. A factory has five assembly lines. Each assembly line is down (not working) p percent of the time. What must p equal so that there is a 99 percent chance that at least one assembly line is working?

b. A rod meets its specifications if its diameter is between 0.96 and 1.04 inches. The mean diameter of a rod is 1 inch. What should the standard deviation of rods equal for 99 percent of rods to meet the specifications?

Reference no: EM132361790

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