Activity analysis Farrah Westin plans to build a concrete walkway for her home during her vacation. The following schedule shows how project time will be allocated: a. How much of the total time is value-added time? hours b. How much total time is spent performing non-value-added activities? hours c. Calculate the manufacturing cycle efficiency. Note: Round the percentage to one decimal point (i.e. show 14.445% as 14.4% ). %