ormulas: Add; Divide; Cell Referencing E3.13-Using Excel with Learning Curves PROBLEM Willem was reviewing his former colleague's calculation for unit production time with a learning curve, but he felt like he was missing something. Estimates of the time it would take to make each successive unit and the learning curve observed are provided here. Expected time to make third unit Expected time to make fourth unit Learning curve observed 33.85 minutes 32.40 minutes 90% Student Work Area Required: Provide input into cells shaded in yellow in this template. Input the required. mathematical formulas or functions with cell references to the Problem area or work area as indicated. Fill in the missing details for the time per unit for units one and two, respectively, and the total time expected for making one, two, three, and four units. Number of Units Produced 1 Time Per Unit Total Cumulative Time 5 6 17 15 20 2 3 4 33.85 32.40