Question: A major car manufacturer is experimenting with three new methods of pollution control. The testing lab must determine whether the three methods produce equal pollution

A major car manufacturer is experimenting with three new methods of pollution control. The testing lab must determine whether the three methods produce equal pollution reductions. Readings from a calibrated carbon monoxide meter are taken from groups of engines randomly equipped with one of the three control units. The data are in the file Pollution. Determine whether the three pollution-control methods will produce equal results.

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