Mathematics, 29.03.2021 19:00 hannahelisabeth19

Quick Start Company makes 12-volt car batteries. After many years of product testing, the company knows that the average life of a Quick Start battery is normally distributed, with a mean of 43.4 months and a standard deviation of 9.5 months. (a) If Quick Start guarantees a full refund on any battery that fails within the 36-month period after purchase, what percentage of its batteries will the company expect to replace

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Quick Start Company makes 12-volt car batteries. After many years of product testing, the company kn...