Ecology: Fish The Fish and Game Department stocked Lake Lulu with fish in the following proportions: 30% catfish, 15% bass, 40% bluegill, and 15% pike. Five years later it sampled the lake to see if the distribution of fish had changed. It found that the 500 fish in the sample were distributed as follows.

Catfish Bass Bluegill Pike 120 85 220 75 In the 5-year interval, did the distribution of fish change at the 0.05 level?

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