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a nutritionist claims that the mean tuna consumption by a person is 3.2 pounds per year....

a nutritionist claims that the mean tuna consumption by a person is 3.2 pounds per year. A sample of 60 people shows that the mean tuna consumption by a person is 2 9 pounds per year. Assume the population standard deviation is 1.2 pounds. At a=0.1 can you reject the claim?

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