Chang (1945) studied the rate of sedimentation of amoebic cysts in water, in attempting...

Chang (1945) studied the rate of sedimentation of amoebic cysts in water, in attempting to develop methods of water purification. The following table gives the diameters of the cysts and the times required for the cysts to settle through 720μmof stillwater at three temperatures. Each entry of the table is an average of several observations, the number of which is given in parentheses. Does the time required appear to be a linear or a quadratic function of diameter? Can you find a model that fits? How do the settling rates at the three temperatures compare? (See Problem7.)

Reference