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operations management
Questions and Answers of
Operations Management
How can activity time variances cause problems for project managers?
When would you want to buy your own project management software, and when would you want to use open source or cloud-based project management applications?
What are some of the common things you noticed when watching the videos of the projects on Table 12.1?
What are considered best practices for project planning?
Do you think using sticky notes to create a WBS is worthwhile?
What are some problems associated with project crashing, that managers should consider?
What is the primary advice Mr. Buffett provides in his interview?
Which do you think is better— OpenProj or HyperOffice (see video box 8 for HyperOffice )?
For the following project, construct a Gantt chart. Based on your Gantt chart, what are the days to completion?
For the following project, construct a Gantt chart. Based on your Gantt chart, what are the days to completion?
For the following project, construct a Gantt chart. Based on your Gantt chart, what are the days to completion?
Using the project in Problem 5, construct the project network and list all of the possible pathways to completion. Determine the critical path(s). What are the critical path days to completion?
Using the project in Problem 5, determine the ES, EF, LS, LF, and slack times for each activity.
The critical path is A-C-E-F and it is desired to complete the project in 10 days. Crash the necessary activities and determine the total costs, including the minimum crash costs.
Using the activity paths from Problem 6, what are the minimum completion days and what is the total project cost?
Describe Six Sigma’s origins.
What is the reason for using the name Six Sigma?
What is DPMO and why would a company calculate it?
What is the Deming Prize? What companies can receive it?
What was the reasoning behind Crosby’s belief that quality is free?
How did Juran discuss quality differently among management and then workers?
Why are Six Sigma efforts tied to customer requirements?
What is the purpose of using a process diagram?
What are check sheets and how are they used?
What are Pareto Charts, and why are they useful in quality improvement efforts?
Do you agree with Deming’s Theory of Management? Explain.
Why do you suppose the Baldrige Quality Award is given only to U.S. organizations?
How could a company benefit from using the Baldrige Award application, without actually applying for the award?
What were some of the comments made by managers regarding Six Sigma?
How does the U.S. Army use Lean Six Sigma?
What allowed the Henry Ford Health System to win the Baldrige Award?
What are some of the requirements of ISO 14001?
What are some of the requirements of ISO 9001?
DPMO = 4×1000000/(1×500) = 8000; this is between 3.5 and 4 sigma level. 1. Who is generally credited for the formal beginning of statistical quality control? When was this?
What does it mean when a process is said to be “in control” or “out of control”?
How are the upper and lower control limits normally constructed?
When would management want to use a C chart instead of a P chart?
Why do firms calculate process capability indexes?
What is acceptance sampling, and what are the risks of using it?
What are operating characteristics curves and how are they generated? What do they show?
Why must samples of data be collected? Why not just take one measurement and plot that?
Can a process exhibit sample measurement plots that are all inside the control limits and still be considered out of control? Explain.
What are some variable data and attribute data that could be collected to track the quality of education at your university?
Why is it important to use a good set of control charts? What if the control charts are not a good set?
Why must attribute data samples be large?
Explain how P charts can be used in a manufacturing facility.
Why is it that P charts do not usually look symmetrical around the center line?
Can a process mean be “off-center” yet still be capable? Explain.
Can a process be considered in statistical control, yet also be considered incapable? Explain.
When would you want to test 100 percent of a supplier’s shipment for the required quality level, instead of a sample?
What did Keith Bower say about sample sizes for control charts?
Meltoni’s Tires is wants to switch to a more decentralized warehousing system. They currently have one central warehouse with 4,000 tires. If they go to a four warehouse system, what would be the
The Elizabeth Candies Co. is considering the purchase of a new robotic palletizer and is comparing two suppliers—the Schibrowski Co. and the Rogers Co. The Schibrowski robot system costs $84,000
An ice cream machine has an initial cost of $22,000. In year 4, it will require major maintenance at a cost of $4000. Each year, it is projected to generate $5,000 in net revenues for the company.
Find the net present values of the following potential purchases and projected cash flows, discounted at 6 percent annually: Machine A: Purchase price = $32,000; salvage value after 8 years = $8,000;
Your firm can make a product in-house for $1.25 total cost per unit using equipment which would cost $30,000. Your firm could alternately purchase the same item for $1.65 per unit. Indicate the range
A weighted scorecard is used to compare three suppliers for a product. Determine the total weighted scores for the suppliers, and which supplier would be preferred. Use a 10-point scale. Note that
A weighted scorecard is used to compare three suppliers for a product, using a 10-point scale. Determine the total weighted scores for the suppliers, and which supplier would be preferred.
What is a p-card and when would you use it?
How is competitive bidding used in purchasing?
What is a supply base?
Describe the total cost of ownership and how it is used.
What is outsourcing? Insourcing? Backsourcing ? Co-sourcing? Nearshoring ? When might you use these?
When would a break-even analysis be used by supply management?
What is a tariff? How might tariffs be used to support protectionist policies?
What is free trade? What are some examples of free trade agreements? Why are they formed?
What is countertrade? Is barter a form of countertrade? Why would firms use barter?
What is supply base rationalization? Can this be a good practice? Explain.
Is supplier relationship management all about software? Explain.
What are strategic alliance suppliers?
What is early supplier involvement and how can this be beneficial to both buyer and supplier?
What does yaolit.com offer businesses?
What are the things the College of Education did at Indiana University to reduce carbon emissions while also saving money?
Describe the Walt Disney Co.’s ethical and sustainable sourcing efforts.
What are some of the things that Ariba’s SRM software can do?
What are some of the SRM strategies David Wohler shares, in his video?
Make an argument for both free trade and protectionism. Which do you think is better?
How do companies like Tricorbraun help other companies with their global supplier needs?
How can it be that firms in India like Infosys can be outsourcing jobs to the U.S?
What is the impact on jobs due to reshoring , according to the video? Do you agree?
What did the automotive supplier certification expert typically see in his experiences?
What are the two biggest spend categories that should be reduced according to the spend management video?
Why aren’t all suppliers “strategic suppliers”?
How as the internet changed purchasing? Use an example.
What is ethical sourcing? Sustainable sourcing?Green sourcing? How are they different?
What is an e-marketplace? How do businesses use them?
What is a reverse auction? When would you want to use it?
How can businesses use social media to buy and sell products?
When would supply base rationalization be a bad idea?
What are supplier scorecards? How are they used?
Give some examples of fair trade products. Does Starbucks use fair trade coffee? Why? What certification agencies are being used today?
Define logistics. How is it different from transportation?
What are the activities and the goal of logistics management?
What are the steps in a facility location decision, and how does facility location impact logistics?
How do locations for manufacturing facilities differ from service locations?
What is the World Trade Organization’s role in regional trade agreements?
What is a tariff and why would a country want to use them?
Why should the weighted factor rating technique be performed by a team of analysts, instead of one analyst? What should the weights sum to?
What are the assumptions of the center-of-gravity technique? What types of organizations might use this technique?
What are the five modes of transportation and which is the most flexible?
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