42. The head of the Organization and Methods department of Tube can make some estimates about the handling time of a raw material. raw material. During a departmental meeting with various department heads various explanatory variables were suggested as having an appreciable effect on the handling time effect on handling time, including the distance travelled in metres, the weight meters, the weight handled in number of pallets, the height of the vertical movement in in meters... A survey of 12 observations was made on these various variables. The table below below is only an extract of the data associated with the handling time in handling time in centimeters and the distance traveled in (m).