A test is called the most powerful test of size α if?

1. A Option A: Among all other tests of size α or greater, it has the largest 1 − α
2. B Option B: Among all other tests of size α or less, it has the largest power
3. C Option C: Among all other tests of size α or greater, it has the smallest power
4. D Option D: Among all other tests of size α or greater, it has the largest β

Answer checked 11 October 2026 · How we write and check questions