Neuro Instruments uses a manufacturing costing system with one direct-cost category (direct materials (Click the icon to view the categories.) (Click the icon to view additional information.) 1. Calculate the manufacturing cost per unit of HJ6 in 2019. 2. Calculate the manufacturing cost per unit of HJ6 in 2020. Read the requirements. 3. Did Neuro Instruments achieve the target manufacturing cost per unit for HJ6 in 2020? Explain. 4. Explain how Neuro Instruments reduced the manufacturing cost per unit of HJ6 in 2020. 5. What challenges might managers at Neuro Instruments encounter in achieving the target cost? How might they overcome these challenges? More info In response to competitive pressures at the end of 2019 , Neuro Instruments used value-engineering techniques to reduce manufacturing costs. Actual information for 2019 and 2020 is as follows: The management of Neuro Instruments wants to evaluate whether value engineering has succeeded in reducing the target manufacturing cost per unit of one of its products, HJ6, by 10%. Actual results for 2019 and 2020 for HJ6 are as follows