[Hypothesis]    Ho :    H1 :
A Ho : α1 = α2 = ... = αa = 0 H1 : αj ≠ 0
B Ho : β1 = β2 = ... = βb = 0 H1 : βi ≠ 0
[Test Type]   F-test (ANOVA)
[Sample Data]  ()
  A 1 A 2 A 3 A 4
  B 1   ȳ1..
  B 2   ȳ2..
  B 3   ȳ3..
  B 4   ȳ4..
.1. .2. .3. .4.   ȳ...