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AtthetimeshewashiredasaserverattheGrumneyFamilyRestaurant,BethBrigdenwastold,Youcanaverage$80adayintips.Assumethepopulationofdailytipsisnormallydistributedwithastandarddeviationof$9.95.Overthefirst35daysshewasemployedattherestaurant,themeandailyamountofhertipswas$84.85.Atthe.01significancelevel,canMs.Brigdenconcludethatherdailytipsaveragemorethan$80?

  1. AtthetimeshewashiredasaserverattheGrumneyFamilyRestaurant,BethBrigdenwastold,"Youcanaverage$80adayintips."Assumethepopulationofdailytipsisnormallydistributedwithastandarddeviationof$9.95.Overthefirst35daysshewasemployedattherestaurant,themeandailyamountofhertipswas$84.85.Atthe.01significancelevel,canMs.Brigdenconcludethatherdailytipsaveragemorethan$80?

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