Lifetime of Laptop Batteries Narrative
The manufacturer of a particular battery pack for a laptop computer claims the battery pack can function for 8 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.
-Refer to Lifetime of Laptop Batteries Narrative. Based on the interval in the previous question, can the manufacturer's claim be rejected? Justify your answer.
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