1.Virginia’sBARExamisoenconsideredoneof themoredifficultinthenaon,whileNebraska’sisconsideredoneof theeasiest.Logicwouldindicatethatthetwoexamswouldhavewildlydifferentpassrates.InJulyof 2015,atotalof...

1.Virginia’sBARExamisoenconsideredoneof themoredifficultinthenaon,whileNebraska’sisconsideredoneof theeasiest.Logicwouldindicatethatthetwoexamswouldhavewildlydifferentpassrates.InJulyof 2015,atotalof 1143applicantssatfortheVABar,with810passing.Inthesamemonth,307applicantssatfortheNE Bar,with210passing.Atthe0.05level,testtheresearchhypothesisthatthetwoexamshaveunequalpassrates.(For this problem, show all work.) 2.Differentspeciesof thetropicalflowerHeliconiaareferlizedbydifferentspeciesof hummingbirds.Researchersbelievethatoverme,thelengthsof theflowersandtheformof thehummingbirds’beakshaveevolvedtomatcheachother.Herearedataonthelength,inmillimeters,fromrandomsamplesof twocolorvarieesof theflower,knowntobepollinatedbydifferenttypesof hummingbirds.Atthe0.01level,testtheresearchhypothesisthatthesebirdshavedifferentbeaklengths.samplesizesamplemeansamplest.dev.H.caribaeared2339.6981.7865H.caribaeayellow1536.1800.9753