Using the Multiple File, calculate the following.

Each nurse costs $40/hr and can serve 5 patients per hour. Each patient that waits costs the hospital about $100. Shift A has about 43 people arriving per hour. Shift B has about 51 people per hour. Shift C has about 37 patients per hour.

Under these conditions, the current schedule (and standard of care) has 9 nurses working on Shift A, 11 nurses working on Shift B and 8 working on Shift C.

Fill in the blanks: (1 pt each)

Current Standard of care
Shift	A	B	C
# Nurses	9	11	8
Patients waiting
Total Cost

As we discussed in class, if we only prepare for the average situation, we will be wrong about half the time. Using what you know about the appropriate distribution, what is the worst case scenario we need to worry about for each of the shifts? (mean + 2*Std Dev)

Now, go back and look at how things work out with these WCS values from above? This will tell us how bad it is when the current standard of care is under stress.

Fill in the blanks: (1 pt each)

Current Standard of care (Under Stress)
Shift	A	B	C
# Nurses	9	11	8
WCS arrival rate
Total Cost

Now, using the WCS values above, determine the optimal number of nurses you need based upon minimizing the cost. This will be considered an Updated Standard of Care for the ER. Since it is under stress, we will keep that moniker.

Fill in the blanks: (1 pt each)

Updated Standard of Care (Under Stress)
Shift	A	B	C
# Nurses
WCS arrival rate
Total Cost