Modeling and Multivariate Methods - SAS

Chapter 3 Fitting Standard Least Squares Models 79
Estimates
• For every combination of α, σ, and n, the least significant value is calculated.
Perform the example shown in Figure 3.17 to produce the results in Figure 3.18.
Figure 3.18 The Power Analysis Tables
If you check Adjusted Power and Confidence Interval in the Power Details window, the Power report
includes the AdjPower, LowerCL, and UpperCL columns.
Plot of Power by Sample Size
To see a plot of power by sample size, select the Power Plot option from the red triangle menu at the bottom
of the Power report. See Figure 3.18. JMP plots the Power by N columns from the Power table. The plot in
Figure 3.19 is a result of plotting the Power table in Figure 3.18.
Figure 3.19 Plot of Power by Sample Size