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Interpolated The mean battery life of the iPhone is approximately 12.4 hours with a standard deviation of 5.29 hours. If 40 iPhones are randomly selected,

Interpolated
The mean battery life of the iPhone is approximately 12.4 hours with a standard deviation of 5.29 hours. If 40 iPhones are randomly selected, there is a 85% probability that the mean battery life is between what two values? If there are two answers, list both answers separated by a comma

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