18. I-mart is a discount optical shop that can fill most prescription orders in around one hour. The management is analyzing the processes at the store. There currently is one person assigned to each task. The optometrist assigned to task B takes an hour off for lunch and the other employees work the entire day. Task A. Greet/register the patient B. Optometrist conducts eye exam C. Frame/lenses selection D. Glasses made (process can run six pairs of glasses at the same time) E. Final fitting Time 2 minutes/patient 25 minutes/patient 20 minutes/patient 60 minutes/patient 5 minutes/patient For a typical 10-hour retail day (10 A.M. to 8 P.M.), the manager would like to calculate the following: a. What is the current maximum output of the process per day (assuming every patient requires glasses)? b. If another person were added, where would be the logical place? e. What effect would a mail order lab (where the glasses are made off-site and returned in five to seven days) have on the process?

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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I need assistance with Homework question Chapter 11 Problem 18. I keep getting the calculations mixed up. Thank you. 

18. I-mart is a discount optical shop that can fill most prescription orders in around one hour. The management is analyzing the processes
at the store. There currently is one person assigned to each task. The optometrist assigned to task B takes an hour off for lunch and the
other employees work the entire day.
Task
A. Greet/register the patient
B. Optometrist conducts eye exam
C. Frame/lenses selection
D. Glasses made (process can run six pairs of glasses at the same time)
E. Final fitting
Time
2 minutes/patient
25 minutes/patient
20 minutes/patient
60 minutes/patient
5 minutes/patient
For a typical 10-hour retail day (10 A.M. to 8 P.M.), the manager would like to calculate the following:
a. What is the current maximum output of the process per day (assuming every patient requires glasses)?
b. If another person were added, where would be the logical place?
e. What effect would a mail order lab (where the glasses are made off-site and returned in five to seven days) have on the process?
Transcribed Image Text:18. I-mart is a discount optical shop that can fill most prescription orders in around one hour. The management is analyzing the processes at the store. There currently is one person assigned to each task. The optometrist assigned to task B takes an hour off for lunch and the other employees work the entire day. Task A. Greet/register the patient B. Optometrist conducts eye exam C. Frame/lenses selection D. Glasses made (process can run six pairs of glasses at the same time) E. Final fitting Time 2 minutes/patient 25 minutes/patient 20 minutes/patient 60 minutes/patient 5 minutes/patient For a typical 10-hour retail day (10 A.M. to 8 P.M.), the manager would like to calculate the following: a. What is the current maximum output of the process per day (assuming every patient requires glasses)? b. If another person were added, where would be the logical place? e. What effect would a mail order lab (where the glasses are made off-site and returned in five to seven days) have on the process?
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