Concept explainers
a)
To determine: Sequence of jobs based on decision rule Earliest Due Date (EDD).
Introduction: Earliest Due Date is the
b)
To determine: The average job tardiness for the sequence determined using EDD
Introduction: Earliest Due Date is the scheduling rule, which helps to arrange the sequence in the order. Here, job with the earliest due date would be served first. Then, the process would be going on from earliest due date to latest due date.
c)
To determine: The average number of jobs for the sequence determined using EDD
Introduction: Earliest Due Date is the scheduling rule, which helps to arrange the sequence in the order. Here, job with the earliest due date would be served first. Then, the process would be going on from earliest due date to latest due date.
d)
To determine: Whether the SPT would have better result in terms of job tardiness than EDD.
Introduction: Shortest Processing Tine is the scheduling rule, which helps to arrange the sequence in the order. Here, job with the shortest duration would be served first. Then, the process would be going on from shortest to largest duration.
Want to see the full answer?
Check out a sample textbook solutionChapter 16 Solutions
Operations Management
- Consider the types of jobs typically found at a university. Identify which jobs are line positions and which ones are staff positions. Professor Academic department chair Receptionist Financial aid officer Librarian Advisor Line Staff O O O O O O Oarrow_forwardMirna is a staffing specialist at XYZ Company. Which of the following tasks is LEAST likely performed by Mirna? * Recruitment O Job analysis HR planning Training The complaint that employees never hear of a position until it is filled can best be handled and avoided through a system of O Job posting and job bidding O Job recreation O Recruiting and testing O Networking and onboarding Potential employees located within the geographie area from which.arrow_forwardCalculate the Critical Ratios (CR): (Enter all responses rounded to two decimal places.) The following jobs are waiting to be processed at Jeremy LaMontagne's machine center. Today is day 245. Job Date Job Received Due Date Duration (days) 1 215 300 30 2 230 310 25 3 228 290 35 4 235 305 40 5 245 315 45arrow_forward
- state whether or not each situation would be considered “compensable time” (and why or why not). An employee of a fast food chain has to arrive at work 15 minutes early to change into the“mascot” costume and it typically takes another 15 minutes at the end of the shift to change outof the costume and properly store it. Due to the cost of the costume, employees are notallowed to take the costume home. The “mascots” typically work from 10am – 2pm, to coverthe lunch rush periods. How much time would be “compensable” for the mascots, assumingthe conditions/schedule listed above?2) George is a Radiology Technician at a local hospital and when on call, is required to be nofurther than 30 minutes away from the facility. Is the “on call” time, compensable?arrow_forwardBased on the data provided in Table 2.5, what is the flow rate of callers from 8:00 to 8:30 am? Note: Round your answer to 1 decimal place. Caller Time in Time out 1 8:00 8:15 2 8:03 8:12 3 8:07 8:19 4 8:10 8:29 5 8:15 8:21 6 8:18 8:24 7 8:18 8:28 8 8:18 8:25arrow_forwardThat's not the anwser I'm even more confused because the anwser to that question is processed order E, A, C, D, B. And average job lateness is 6.4 i tried anwsering on my own before you finishedarrow_forward
- Output from the Gantt chart drawn for a machining process is shown here. Determine the makespan of the process. Job Waiting Time (hr) Delivery Time (hr) 1 0 10 2 10 15 3 1 16arrow_forwardGive typed full explanation An open mic night at a local café is popular on Wednesday nights. Between 8-10 p.m. a performer arrives on average every 3.5 minutes. The performers sign up on a first come, first serve basis and each performer is asked to keep their songs short. Most performers abide by this and the average performance time is 3 minutes. What is the utilization of the performance stage? Answer as a percentage. What is the average time (in minutes) a performer waits to get on stage? Round your answer to the next integer number. On average how many performers are in the café? Round your answer to the next integer number.arrow_forwardWhat are the trade-offs in the following?A. Deciding how often to update standard times due to minor changes in work methods.B. Choosing between time study and work sampling for work measurementarrow_forward
- In Human Resources and Job Design Labor Standards, suppose that the allowance factor for a job is 0.5 and the normal time is 5 hours. What is the standard time? O 5 hours O 2.5 hours O 10 hours O 7.5 hours O cannot determine with the given informationarrow_forwardCurrently a company that designs Web sites has six customers in its backlog. The time since the order arrived, processing time, and promised due dates are given in the following table. Job Time Since Order Arrived (days ago) Processing Time (days) Due Date (days from now) A 6 18 48 B 4 22 52 C 1 30 70 D 10 14 28 E 7 12 56 F 5 20 62 Develop a schedule by using the first-come, first-served (FCFS) rule and calculate the average flow time and average days past due for the schedule. Develop a schedule by using the earliest due date (EDD) rule and calculate the average flow time and average days past due for the schedule. Comment on the performance of the FCFS and EDD rules relative to average flow time and average days past due.arrow_forward1/ Katie Posh runs an upscale nail salon. The service process includes five activities that are conducted in the sequence described below. (The time required for each activity is shown in parentheses):Activity 1: Welcome a guest. (1 minute)Activity 2: Clip and file nails. (3 minutes)Activity 3: Paint. (5 minutes)Activity 4: Dry. (10 minutes)Activity 5: Check out the customer. (4 minutes)Three servers (S1, S2, and S3) offer the services in a worker-paced line. The assignment of tasks to servers is the following: S1 does Activity 1. S2 does Activities 2 and 3. S3 does Activities 4 and 5. The drying process does not require server 3’s constant attention; she/he needs to only escort the customer to the salon’s drying chair (equipped with fans for drying). The time to do this is negligible. There exists only one drying chair in the salon.a. What is the utilization of server 2 (in decimal form)? Assume that there is unlimited demand and that the process only admits customers at the rate of…arrow_forward
- Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,Operations ManagementOperations ManagementISBN:9781259667473Author:William J StevensonPublisher:McGraw-Hill EducationOperations and Supply Chain Management (Mcgraw-hi...Operations ManagementISBN:9781259666100Author:F. Robert Jacobs, Richard B ChasePublisher:McGraw-Hill Education
- Purchasing and Supply Chain ManagementOperations ManagementISBN:9781285869681Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. PattersonPublisher:Cengage LearningProduction and Operations Analysis, Seventh Editi...Operations ManagementISBN:9781478623069Author:Steven Nahmias, Tava Lennon OlsenPublisher:Waveland Press, Inc.