The manufacturer of a particular battery pack for a laptop computer claims the battery pack can function for eight hours, on average, before having to be recharged. A random sample of 36 such battery packs was selected and tested. The mean and standard deviation were found to be 6 hours and 1.8 hours, respectively. Find a 95% lower confidence bound for the true average time the battery pack can function before having to be recharged. Interpret this bound.
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6 - (1.645)(1.8)/ = 6 - 0.4935 = 5.506...View Answer
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