On a beach, there are three ice cream stands that are supposed to be occupying equally good locations. The management of the beach wants to know whether this assumption is true. The ice cream sales during the past few days, in hundreds of dollars, are recorded here. Do a 5 % test to determine whether the ice cream sales are the same in the three locations.

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Location A 12 14 14 18 21 B 31 21 20 17 12 21 14 17 16 23