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2. An ecologist claims that because of environmental influences, the mean life of Louisiana shellfish is 27 months. Feeling the claim is too low, a congressman decides to test the ecologists claim at a significance level of 5%. The congressman took a random sample of 16 a shellfish and found the mean life to be 28.05 months with a standard deviation of 2.8. Do the sample results indicate that the ecologist Solution a)The null hypothesis Ho:=27.

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2. An ecologist claims that because of environmental influences, the mean life of Louisiana shellfish is 27 months. Feeling the claim is too low, a congressman decides to test the ecologists claim at a significance level of 5%. The congressman took a random sample of 16 a shellfish and found the mean life to be 28.05 months with a standard deviation of 2.8. Do the sample results indicate that the ecologist Solution a)The null hypothesis Ho:=27

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  • 1. 2. An ecologist claims that because of environmental influences, the mean life of Louisiana shellfish is 27 months. Feeling the claim is too low, a congressman decides to test the ecologists claim at a significance level of 5%. The congressman took a random sample of 16 a shellfish and found the mean life to be 28.05 months with a standard deviation of 2.8. Do the sample results indicate that the ecologist Solution a)The null hypothesis Ho:=27