Il'll''rm-HII UH Guaranters' Mutual. an insurance cempahy. wants te cernpare the difference in repair cests ef mederately damaged cars at twe sheps. They select a randem sample cf 12 mcderately damaged cars. take each car te heth sheps. and ask heelI much the necessary repairs Ilyill east. IIl'll'hen they receive the eest estimates fcr each car. they sulstract the cast at: the first shep frem the cest at the secend shcp. lilte this: d=cest at secend shepcest at rst Shpf'yersien":"l.1"."math":"d = 1Itertt{cesl: at secend shep}~tte:tt{eest at first shep}"}. They create a ll-Q plet ef the differences and see that the peints in the plat reughly term a straight line. Use this infennatier'r fer the next Me questiens. Question I? {as paints} la-a. aLd. WhI is the hull hypcthI-Iis fer this study? Questicrr E? cptiens.' t' He: lid #'EH"ysrsien":"l.1","mam":"H,e:hnmldMqu"} t\" He: Ltd ":D{"yarsien":"1-1"."mst1'L":"l-Iue:'umd_dse"} I" He: Ltd =D{"versien":"1-1"."mat1'L":"l-Iue:'umu_d=e"} He:le INCH"vesicle-z"1.1"."maL1-t":"u_,e:unune-n'- it