A county environmental agency suspects that the fish in a particular polluted lake have elevated mercury...

A county environmental agency suspects that the fish in a particular polluted lake have elevated mercury level. To confirm that suspicion, five striped bass in that lake were caught and their tissues were tested for mercury. For the purpose of comparison, four striped bass in an unpolluted lake were also caught and tested. The fish tissue mercury levels in mg/kg are given below. polluted: 0.580, 0.711, 0.571, 0.666, 0.598 unpolluted: 0.382, 0.276, 0.570, 0.366 Test, at the 5% level of significance, whether the data provide sufficient evidence to conclude that fish in the polluted lake have elevated levels of mercury in their tissue. What is the p-value?

Solutions

Expert Solution

Let denote mean mercury levels in polluted and unpolluted lakes respectively.

There is sufficient evidence to support the claim that fish in the polluted lake have elevated levels of mercury in their tissue.

orchestra answered 1 year ago

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