Mathematics, 22.04.2020 00:06 robertgib76

A company has developed a new battery, but the average lifetime of all of the batteries it makes is unknown. In order to estimate this average, a sample of 500 batteries is tested and the average lifetime of this sample is found to be 225 hours. The 225 hours is the value of a:

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A company has developed a new battery, but the average lifetime of all of the batteries it makes is...