POWER MEANS ONESAMPLE
/PARAMETERS TEST=NONDIRECTIONAL SIGNIFICANCE=0.05 N=2 SD=1 MEAN=1 NULL=.5
/PLOT N(2 5) N_YAXIS(2 5) ES_XAXIS VROTATE(10) HROTATE(325).
- PARAMETERS specifies that the test is non-directional
(two-sided), the significance level uses the default 0.05 value, the sample size for power
estimation is set to 1, the population standard deviation is set to 0.5, the population mean(s)
under testing is set to 1, and the null hypothesis value to be tested is set to 0.5.
- PLOT specifies that the two-dimensional power by sample
size chart displays in the output. The three-dimensional power by sample size (x -axis) and effect
size (y-axis) chart also displays in the output. The vertical and horizontal rotation settings use
their default values (10 degrees and 325 degrees respectively).