Note: That an additional employee, the cashier, performs accept payment, not the Bookkeeper Bookkeeper Bookkeeper Receptionist Sign-in & Pull Records 4 min/patient Do Insurance Paperwork Accept Payment 2 min/patient 5 min patient Hygeinist 1 Clean Teeth 18 min/patient Hygeinist 2 Dentist Clean Teeth Dentist Examines Patient 18 min/patient 5.5 min patient Hygeinist 3 Clean Teeth 18 min/patient The University Dental Clinic (UDC) serves as a walk-in clinic (i.e. no appointments) that takes care of basic dental health. (Other, more extensive dental work is done by a separate clinic on campus.) Patients arrive on average every 11.0 minutes at the UDC. The layout of the clinic is such that there is one room per hygienist, but a separate room is set aside for the dentist to examine patients. The clinic also employs a receptionist and a bookkeeper and a cashier who excepts payment. All of their activities and the associated activities are shown in the diagram below. Assume that arrivals at the UDC are not correlated with each other, the mean of each operation's service times equals its standard deviation and no one leaves the line University Dental Clinic waitline process.pdf Note: That an additional employee, the cashier, performs accept payment, not the Bookkeeper Question 20 1 pts What is the average waiting time between the receptionist and hygienists? (in Minutes) O 0.5 Oo 0 3.5 4.4 5.5 D Question 21 1 pts What is the average waiting time between the hygienists and the dentist (in minutes) 3.5 O 5.5 Question 21 1 pts What is the average waiting time between the hygienists and the dentist (in minutes) 3.5 O 5.5 0.5 4.4 Question 22 1 pts For a similar clinic, where a patient arrives every 5 minutes on average. The average time a patient is in the clinic is 80 minutes. How many patients on average are in our clinic? 0.5 4.4 D Question 22 1 pts For a similar clinic, where a patient arrives every 5 minutes on average. The average time a patient is in the clinic is 80 minutes. How many patients on average are in our clinic? O 16 07 18 O 12 09 n Question 23 1 pts 12 09 Question 23 1 pts What would happen to the wait time for the hygienist if after process improvement it took 16 minutes for the clean teeth operation? It will infinitely expand in size It would decrease to a new, steady state level It would increase to a new steady state level It would stay the same Question 24 1 pts In general, what happens to flow time as the Coefficient of Variation of the inter arrival time is reduced? It would stay the same D Question 24 1 pts In general, what happens to flow time as the Coefficient of Variation of the inter arrival time is reduced? It would stay the same O Not enough information to calculate It would increase It would decrease