Mathematics, 22.09.2020 14:01 xitlalizt83341

has developed a new battery for its portable navigation systems. To help market this system, the company wants to know how long, on average, the batteries last before they burn out. The company tests a random sample of 100 batteries and find that the sample mean is 80 hours, with a sample standard deviation of 20 hour What is the point estimate for the mean lifetime of the batteries

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has developed a new battery for its portable navigation systems. To help market this system, the com...