A fish story Concerned about reports of discolored scales on fish caught downstream from a newly sited chemical plant, scientists set up a field station in a shoreline public park. For one week they asked fishermen there to bring any fish they caught to the field station for a brief inspection. At the end of the week, the scientists said that 18% of the 234 fish that were submitted for inspection displayed the discoloration. From this information, can the researchers estimate what proportion of fish in the river have discolored scales? Explain.
Lecture1 Tuesday,August162:18PM • WaysofKnowingNewinformation ○ Tenacity § Hearingsomethingrepeatedly ○ Authority § Youknowyourinfoistrueifitcomesfromasourceofauthority ○ Experience § Ifyouexperiencesomethingyougainknowledgefromit ○ ReasonandLogic § Youcanthink,reason,andfigureoutinformationthisway ○ OurFocus:TheScientificMethod § Systematicmethodoffindinginformation § Componentsofscientificmethod □ Objectivity- freefromsubjectivebias □ Quantified- weusenumbers □ Replication- isthefindingduetoluckorisitasolidresultthatwillhappeneverytime □ Self-correction- thescientif