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  What is the average serum bilirubin level of patients admitted to a hospital for treatment of...

  What is the average serum bilirubin level of patients admitted to a hospital for treatment of hepatitis? A sample of 10 patients yielded the following results: 20:5;14:8;21:3;12:7;15:2;26:6;23:4;22:9;15:7;19:2 Construct a 95 percent confidence interval for the population mean

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