(b) A researcher supects that the fish in a particular elevated wetland have elevated mercury level. To confirm that, fi

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B A Researcher Supects That The Fish In A Particular Elevated Wetland Have Elevated Mercury Level To Confirm That Fi 1 (30.91 KiB) Viewed 79 times

(b) A researcher supects that the fish in a particular elevated wetland have elevated mercury level. To confirm that, five striped bass in that wetland were caught and their tissues were tested for mercury. Then four striped bass in an unpolluted wetland were also caught and tested for the purpose of comparison Table Q1 shows the fish mercury levels in mg/kg. Table QI shows the fish mercury levels in mg/kg. Sample from polluted wetland Sample from unpolluted wetland 0.580 0.382 0.711 0.276 0.571 0.570 0.666 0.366 0.598 Construct the 95% confidence interval for the difference in the population means. Then, test at the 5% level of significance, whether the researcher's suspicion is valid. Assume that the population variances are equal.