5.43 A computer game. A multimedia statistics learn-

Hiiti ing system includes a test of skill in using the computet's mouse. The software displays a circle at a random location on the computer ^screen. The subject clicks in the circle with the mouse as quickly as possible. A new citcle appears as soon as the subject clicks the old one. Table 5.3 gives data for one subject's trials, 20 with each hand. Distance is the distance from the cursor location to the center of the new circle, in units whose actual size depends on the size of the screen. Time is the time required to click in the new circle, in milliseconds.'® We sus pect that time depends on distance. We also suspect that per formance will not he the same with the right and left hands.

Analyze the data with a view to predicting performance sepa rately for the two hands.