A manufacturer wishes to estimate the mean time a battery pack will function before needing to be recharged with a margin of error of no more than 0.5 hours and with probability 0.95. If the standard deviation is known to be 1.5 hours, how many observations should be included in the sample?
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The Answer of A manufacturer wishes to estimate the mean time a battery pack will function before needing to be recharged with a margin of error of no more than 0.5 hours and with probability 0.95. If the standard deviation is known to be 1.5 hours, how many observations should be included in the sample?
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A Manufacturer Wishes to Estimate the Mean Time a Battery