Hi. In this help document page: https://www.jmp.com/support/help/en/16.1/?os=win&source=application#page/jmp/power-for-two-independent-sample-equivalence.shtml#, for the the equation at the bottom (for power when sigma is known):
1. This formula appears to be able to generate negative numbers (which it is not supposed to!) for small equivalence range values (say -1 to +1). Using this formula, can other people recreate this result?
2. If negative power numbers can be generated in bullet number 1, is this equation correct? Is there a typo or qualification somewhere that's missing?
Thanks in advance.