The SPC does not include forwarding services to a new address. When a package is not deliverable or refused by the occupant, a SPC will attempt to locate a new address through publicly available address services.
T1 = Hours to produce the first unit. b = (Log of the learning rate/Log 2) = Slope of the learning curve. If the learning rate for a given operation is 80%, and the first produced unit took 1.000 hours, the hours needed for the thirteenth unit can be calculated as follows: TN = T1(Nb).
A smoothed curve was fit through the grade-level points indicated here, and regression analysis provided the equations: Lexile=500Ln(Grade Level) or, the counterpart GradeLevel=e0.002(Lexile) The resulting regression equation was then used to calculate the educational grade-levels in the above table.