b$.$ Answer these questions:

$(1)$ What is the shortest cycle time that will permit use of only two workstations? $($Round your answer to $1$ decimal place.$)$

Shortest cycle time

minutes

$(2)$ Determine the percentage of idle time that would result if two stations were used and each station was loaded with the worktime shown in Part b$(1).($Leave no cells blank $-$ be certain to enter $"0"$ wherever required.$)$

Percentage of idle time

$(3)$ What is the daily output under this arrangement a using the cycle time from Part b$(1)?($Round your answer to $2$ decimal places.$)$

units per day