The Following Exercises Require a Computer In Figure 12, we have illustrated the output from MINITAB commands for fitting a straight line. To create the scatter plot, without the fitted line, choose:
Graph > Scatter plot. Choose Simple. Click OK. Type C2 in Y variables and CI in X variables. Click OK.
Use MINITAB (or another package program) to obtain the scatter diagram, correlation coefficient, and regression line for:
(a) The GPA and GMAT scores data of Table 7 in Example 3.
(b) The temperature x and ozone y data in Exercise 3.25.