The department of natural resources defines a fish to be unsafe to eat if the polychlorinated biphenol (PCB) concentration exceeds 5 parts per billion (ppb). A random sample of 10 fish taken from a local lake resulted in the data listed below:
2.6, 6.6, 4.8, 5.4, 5.1, 4.5, 6.9, 4.9, 3.7, 3.8
Is there sufficient evidence to conclude that the mean PCB concentration for fish from this lake exceeds 5 ppb?

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The Answer of The department of natural resources defines a fish to be unsafe to eat if the polychlorinated biphenol (PCB) concentration exceeds 5 parts per billion (ppb). A random sample of 10 fish taken from a local lake resulted in the data listed below:
2.6, 6.6, 4.8, 5.4, 5.1, 4.5, 6.9, 4.9, 3.7, 3.8
Is there sufficient evidence to conclude that the mean PCB concentration for fish from this lake exceeds 5 ppb?

The Department of Natural Resources Defines a Fish to Be