A telecom company wants to compare customer satisfaction (Likert scale, 1-5) across four different service plans. Using the one-way ANOVA module with a small-to-medium effect size (f=0.20), alpha=0.05, power=0.80, Sample Power v3.0.1 calculates a total N of 280 – 70 per group.
One of the strongest assets of v3.0.1 is its seamless integration with IBM SPSS Statistics. Users can: IBM SPSS Sample Power v3.0.1
The software allows users to see instantly how changing one parameter affects the others. This "what-if" functionality is invaluable for balancing statistical rigor with practical constraints (e.g., limited budget or subject availability). A telecom company wants to compare customer satisfaction
You must select a specific test first. Go to Test → Choose, then select the exact design (e.g., “Repeated Measures – Between/Within”). then select the exact design (e.g.