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Mathematics, 11.10.2021 04:50 PluggedIn

Eco-Cook steamer has a mean time before failure of 31 months with a standard deviation of 3 months, and the failure times are normally distributed. What should be the warranty period, in months, so that the manufacturer will not have more than 10% of the steamers returned? Round your answer down to the nearest whole number.

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Eco-Cook steamer has a mean time before failure of 31 months with a standard deviation of 3 months,...

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