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Replacement times for electric stoves are normally distributed with a mean of 5.6 years and a standard deviation of 2.5 years.If the manufacturer wants to

  1. Replacement times for electric stoves are normally distributed with a mean of 5.6 years and a standard deviation of 2.5 years.If the manufacturer wants to provide a warranty so that at most 15% of the stoves will be replaced before the warranty expires, what is the time length of the warranty?Round to the nearest tenth.

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