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What the probability that the value of the sample mean

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Reference no: EM132479428

LifeCharge Batteries claims that their batteries last an average of 265 hours when used in a hand held gaming system, with a standard deviation of about 15 hours. An independent quality control company took a sample of 44 batteries, and used the same hand held gaming system that LifeCharge used to record the time the batteries lasted. Using this information, answer the following questions. What the probability that the value of the sample mean is less than 264.4 hours?

Reference no: EM132479428

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