The data show the particulate matter in micrograms per cubic meter for a sample of large cities

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The data show the particulate matter in micrograms per cubic meter for a sample of large cities on three continents. At α = 0.10, is there a difference in the mean particulate matter among these continents?

Asia Europe North America 21 27 83 24 46 36 118 34 54 154 27 17 50 22 16 42 127 29 26 30

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