Mathematics, 30.09.2020 01:01, Gabr02

A track and field coach wants to study the average 100-meter dash time of his team. A random selection of half the team has a mean time of 13 seconds. Is this mean considered a sample mean or a population mean, and which symbol would be used to denote it?

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A track and field coach wants to study the average 100-meter dash time of his team. A random selecti...