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The mean weight for a certain type of fish is known to be 28.0 ounces with a standard deviation of 2.5 ounces . A game warden catches and weighs 30 fish from a certqin pond to check if they are larger than the mean stated above. If the mean of the sample is 30.9 ounces is this evidence of a significantly larger population of fish ? use either L =1% L = 5%

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