[25] "Roof . Style" "Roof . Mat 1" "Exterior. 1st" "Exterior . 2nd" "Mas . Vnr . Type" "Mas. Vnr . Area" [31] "Exter . Qual" "Exter . Cond" "Foundation" "BSmt. Qual" "Bsmt. Cond" "Bsmt. Exposure" [37] "B5mtFin. Type. 1" "BSmtFin. SF. 1" "B5mtFin. Type. 2" "BSmtFin. SF. 2" "Bsmt. Unf. SF" "Total. Bsmt. SF" [43] "Heating' "Heating. QC" "central. Air" "Electrical" "XIst. Flr . SF" "X2nd. Flr. SF" [49] "LOW. Qual. Fin. SF" "BSmt . Full. Bath" "Bamt . Half. Bath" "Full. Bath" "Half. Bath" "Bedroom. AbvGr" [55] "Kitchen. AbvGr" "Kitchen. Qual" "TotRms. AbvGrd" "Functional" "Fireplaces" "Fireplace. Qu" [61] "Garage. Type" "Garage. Yr . BIt" "Garage. Finish" "Garage. Cars" "Gar age. Area" "Garage. Qual" [67] "Garage. Cond" "paved. Drive" "wood. Deck. SF" "open. Porch. SF" "Enclosed. porch" "x35sn. Porch" [73] "screen. Porch" "pool. Area" "Pool. QC" "Fence" "Misc. Feature" "Misc. val" [79] "Mo. 5old" "Yr . 5old" "sale. Type" "sale. Condition" 27 28 - #on your own 29 30 # . Using the following function (which was downloaded with the data set), 31 * # plot all intervals. what proportion of your confidence intervals include 32 - # the true population mean? Is this proportion exactly equal to the 33 - # confidence level? If not, explain why. 34 - {r } 35 par (mfrow = c(1, 1)) 36 1 plot_ci (lower_vector_95, upper_vector_95, mean(population) ) 37 - X Error in plot_ci (lower_vector_95, upper_vector_95, mean(population) ) : could not find function "plot_ci" 36:60 C Chunk 3 * R Markdown *