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An article in the 1993 volume of the Transactions of the American Fisheries Society reports the results of a study to investigate the mercury contamination in largemouth bass. A sample of fish was selected from 53 Florida lakes and mercury concentration in the muscle tissue was measured (ppm). The mean concentration of this sample was .5250 while the sample standard deviation was .3486. Indicate both approximate 95% and 99% confidence intervals for ?

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