mariah enterprises makes a variety of consumer electronic products. its camera manufacturing plant is considering choosing between two different​ processes, named alpha and​ beta, which can be used to make a component part. to make the correct​ decision, the managers would like to compare the labor and multifactor productivity of process alpha with that of process beta. the value of process output for alpha and beta is ​$ per unit of product a and ​$ per unit of product​ b, and the corresponding overhead costs for alpha and beta are ​$ and ​$​, respectively.