Overview (POWER MEANS RELATED command)

POWER MEANS RELATED invokes the power means analysis for the related samples t-test.

Test Assumptions
Specifies the keywords that control the test assumptions. The keywords specify the number of group pairs, the population standard deviations, the Pearson product-moment correlation co-efficient ρ, the population means under testing, and the effect size. For more information, see PARAMETERS Subcommand (POWER MEANS RELATED command).
Significance Level
Specifies the significance level of the test's Type I error rate.
Test Direction
Determines whether the test is one or two-sided.
Two-Dimensional Plot
Controls the two-dimensional power by sample size chart, and the two-dimensional power by effect size chart.
Three-Dimensional Plot
Controls the three-dimensional power by sample size (x-axis) and effect size (y-axis) chart, and the three-dimensional power by sample size (y-axis) and effect size (x-axis) chart. Also controls the vertical rotation degrees (clockwise from the left) and the horizontal rotation degrees (clockwise from the front) for the three-dimensional chart.