Part IV. The quality engineer at Kolex is also trying to decide whether a newer, more costly design involving a gold alloy in a microchip is more effective than the current, less expensive silicon design. The engineer also believes that to obtain an effective output voltage, the temperature and signal levels (low or high) are also important factors. The engineer is also hesitant about using the very expensive gold alloy in the new design. The data found in the Excel file Kolex-Part IV.xls were gathered in testing of all combinations. Calculate the main effects and interaction effects for all factors. Which main effects and interaction effects are important? What recommendations would you make? A B C D E WN - 5 Output Voltage 7 16 8 1 2 Kolex Electronics 3 4 Signal Material Low Silicon 6 High Silicon Low Gold 8 High Gold 9 Low Silicon 10 High Silicon 11 Low Gold 12 High Gold 13 14 15 7 8 Temperature Low Low Low Low High High High High 18 14 10 11 12