Texas Instruments TI-83 Manual Book page 329

31. Press £
20
20 cm.
Press Í to calculate the predicted time of
about 0.92 seconds.
Based on the residual analysis, we would
expect the prediction of about 0.92 seconds to
be within about 0.02 seconds of the actual
value.
TI-83 Plus Statistics
¤ to enter a string length of
326