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Unformatted text preview:  7. Fifty ­eighttroutcaughtinalakehadaverageweight=4.37poundsandstandard deviation=1.61pounds.Fromthesedata,estimatethemeanweightofcatchabletrout inthislakeanddeterminea90%errormargin.  8. Dataontheaverageweeklyearningswereobtainedfromasurveyof50nonsupervisory productionworkersintheminingindustry.Thesamplemeanandstandarddeviation werefoundtobe$630and$35,respectively. (a)E...
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  • Fall '07
  • Xiao
  • )0200, of0200confidence0200interval0200and0200determination0200of0200sample0200size.0200You0200should0200be0200able0200to0200handle0200 them0200upon0200attending0200Tuesday0200lecture.0200, (SAT)0200are0200

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