This function is called by the function AADouble function.
AAZ14Double(PLAN, INSL, LOTS, AQL)
PLAN is the plan type 1=normal, 2=Tightened, 3=reduced.
INSL is the inspection level, 1-7.
LOTS is the lot size, 1-15.
AQL is the Acceptance Quality Level, 1-26.
returns a data frame with two rows and three columns