Figure: Graph of linear equation.

Figure: Computer printout of the hearing data.

Figure: Two lines fit to the four data points.

Figure: Difference between y and y. ˆ

Figure: Data for Example 16.3.

Figure: Solution for Example 16.3.

Figure: MINITAB printout for Example16.3.

Figure: Distributions of y for given values of x.

Figure: MINITAB printout for Example16.7.

Figure: MINITAB printout for Example 16.9.

Figure: Data plotted on ordinary and semilog graph paper.

Figure: Computer printout for Example

Figure: Values of a and b reproduced from display screen of TI-83 graphing calculator.

Figure: Scattergram of the varnish-drying-time data.

Figure: Computer printout for fitting parabola.

Figure: Fit of parabola reproduced from the display screen of a TI-83 graphing calculator.