8. Spinal Tap, Inc. manufactures amplifers that "go to 11." Different quantities and total costs for Spinal Tap, Inc. are summarized below. Q FC VC(Q) TC(Q) ATC(Q) MC(Q) 0 1,000 1 2,000 2 2,500 W 4,000 4 6,000 5 10,000 6 15,000 a. Fill in the missing information in the table. b. Over what range of quantities, if any, are there economies of scale? c. Over what range of quantities, if any, are there diseconomies of scale