Anna$Audler$Stats$10:$Section$3A$UID:$304295761$TA:$Luis$Sosa$Homework$#1$!1.1:!A)$Handedness$=$Categorical$B)$Age$=$Numerical$$1.2:!A)$Shoe$Size$=$Numerical$$B)$Eye$Color$=$Categorical$$1.8:!A)$Wrong$to$Right$=$48.15%;$Right$to$Wrong$=$25.5%;$Despite$48.15%$of$students$correctly$fixing$their$mistake,$51.85%$still$got$the$wrong$answer.$The$larger$percentage$of$students$who$ended$up$with$the$wrong$answer$implies$the$changes$lowered$student$grades.$B)$Wrong$to$Right$=$69.35%;$Right$to$Wrong$=$19.35%;$The$higher$percentage$of$wrong$to$right$changes$implies$that$more$students$correctly$fixed$their$answer$than$those$who$messed$them$up,$so$the$results$of$the$changes$raised$student$grades.$C)$The$results$are$inconclusive$to$whether$a$student$sticks$with$first$hunch$or$changes$answer,$so$I$would$tell$the$student$to$do$whatever$he$prefers$given$the$results$of$the$study.$$1.12:!Frequency:$9;$Proportion:$9/11;$Percentage:$81.82%$$1.19:!The$percentage$of$women$in$each$section$is$missing.$More$women$may$be$in$the$8am$section$because$it$is$a$bigger$class$compared$to$the$10am$section.$$1.24:!Controlled$Experiment$$1.25:!Controlled$Experiment$$1.26:!Observational$Study$$1.27:!Observational$Study$$1.33:!The$students$should$be$randomly$assigned$with$half$of$the$students$taking$the$placebo$and$the$other$half$receiving$vitamin$C.$The$experiment$should$be$a$double$blind$study$to$avoid$bias$and$have$more$reliability.$$1.43:!A)$81/440$=$18.4%$B)$103/429$=$24%$C)$147/424$=$34.7%$D)$Married$had$highest$rate;$No$since$this$was$a n
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