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Operations Research

Project management precedence diagrams

9.15 The following table details the tasks required for Indiana-based Frank Pianki Industries to manufacture a fully portable industrial vacuum cleaner. The times in the table are in minutes. Demand forecasts indicate a need to operate with a cycle time of 10 minutes. CRIPTION IMMEDIATE ECESSORS TIME

Calculating Cycle Times and Theoretical Minimum

9.11 Stanford Rosenberg Computing wants to establish an assembly line for producing a new product, the Personal Digital Assistant (PDA). The tasks, task times, and immediate predecessors for the tasks are as follows: TASK TIME (sec) IMMEDIATE PREDECESSORS IMMEDIATE T

Calculating normal and standard time for a task

Peter Rourke, a loan processor at Wentworth Bank, has been timed performing four work elements, with the results shown in the following table. The allowances for tasks such as tis are personal. 7%; fatigue, 10%; and delay, 3% TASK PERFORMANCE OBSERVATIONS (MINU

Role of Theory: Qualitative Research

•Craft a 5- to 7-page paper in which you do the following: ◦Compare and contrast the role of theory in the five main qualitative approaches (Narrative, Phenomenology, Grounded theory, Ethnographic and Case study research). ◦State what you believe, at this time, will be the role of theory in your qualitative resear

Operational Efficiency and Utilization

Southeastern Oklahoma State University's business program has the facilities and faculty to handle an enrolment of 2,000 new students per semester. However, in an effort to limit class sizes to a "reasonable" level (under 200, generally), Southeaster's dean, Holly Lutze, placed a ceiling on enrolment of 1,500 new students. Altho

What is the effective capacity?

Material delays have routinely limited production of household sinks to 400 units per day. If the plant efficiency is 80%, what is the effective capacity?

Agents Hiring Problem - Optimal Hiring Plan

The TSA at a large airport has 175 agents hired and trained for the month of January. Agents earn an average of $3300 per month and work 160 hours per month. The projection is 26,400 agent hours will be required for February, 29,040 agent hours will be required in March and 31,994 will be required in the months of April and May.

Calculating the C-Chart Limits

The school board is trying to evaluate a new math program introduced to second-graders in five elementary schools across the county this year. A sample of the student scores on standardized math tests in each elementary school yielded the following data: SCHOOL NO. OF TEST ERRORS A 52 B

Developing a Control Chart

Jamison Kovach Supply Company manufactures paper clips and other office products. Although inexpensive. Paper clips have provided the firm with a high margin of profitability. Sample size is 200. Results are given for the last 10 samples: SAMPLE 1 2 3 4 5 6 7 8 9 10 DEFECTIVES 5 7 4 4 6 3

Developing Mean and Range Chart

Twelve sample, each containing five parts, were taken from a process that produces steel rods. The length of each rod in the samples was determined. The results were tabulated and sample means and ranges were computed. The results were: SAMPLE SAMPLE MEAN (in) RANGE (in) 1

Horse Feed Mix Planning

Question: A boarding stable feeds and houses work horses used to pull tourist-filled carriages through the streets of a historic city. The stable owner wishes to strike a balance between a healthy nutritional standard for the horses and the daily cost of feed. This type of horse must consume exactly 5 pounds of feed per day. The

Career advice for students

You have received an email from a graduating student, the son or daughter of an acquaintance. This young person wants advice: How does he or she get a job like yours? The student asks, "What do I have to do? What is the most important advice you can give me? Was there an element of luck in your career choice, and your success

Kitchen business in Palm Beach County

Scenario: You have been asked by a close friend, a kitchen design and installation specialist, for some help in setting up a new business. Your friend has inherited a substantial sum of money and has decided to open his own kitchen design and installation business in Palm Beach County, Florida. He intends to focus his market

Pareto Chart Creation and Analysis of the Data

6.12 Mary Beth Marrs, the manager of an apartment complex, feels overwhelmed by the number of complaints she is receiving. Below is the check sheet she has kept for the past 12 weeks. Develop a Pareto chart using this information. What recommendations would you make?K GROUNDS PARKING/ DRIVEANT ISSUES11111 ELECTRICAL/ PLUMB

Forecasting by least square method

The following gives the number of accidents that occurred on Florida State Highway 101 during the past 4 months: MONTH NUMBER OF ACCIDENTS January 30 February 40 March 60 April 90 Forecast the number of a

Individualist Versus Collectivist

Please help select a research article that analyzes one of the cultural patterns such as collective versus individualistic social perception and gender perspective differences. Help is needed developing a reflection that summarizes the pattern and analyze the implications in a global organization.

Impact of Megatrends in Supply

Based on your experience or readings, discuss how these mega trends affect the Purchasing and Supply Management professional in the exercise of his/her duties and responsibilities - in particular Supply Chain Management and Supplier Outsourcing in the public and private sectors. What are the salient factors that have contributed

Forecasting Techniques: Moving Average and Exponential Smoothing

The Carbondale Hospital is considering the purchase of a new ambulance. The decision will rest partly on the anticipated mileage to be driven next year. The miles driven during the past 5 years are as follows: YEAR MILEAGE 1 3,000 2 4,000 3 3,400 4 3,800 5 3,700 a) Forec

Forecasting Techniques: Exponential Smoothing

YEAR 1 2 3 4 5 6 7 8 9 10 11 DEMAND 7 9 5 9 13 8 12 13 9 11 7 Develop a forecast for year 2 through 12 using exponential smoothing with α = .4 and a forecast for year 1 of 6. Plot your new forecast on a graph with the actual data and the native forecast. Based on a visual inspecti

Cycle Counting

Even though a company may have an active campaign to record inventory accuracy, those records need to be verified through a continuing audit. Those audits are known as performing a cycle counting of work-in-progress, piece part inventory and finished goods. Explain how cycle counting audits improve inventory accuracy. Expl

Marketing for New App

Scenario: You have created a new app for the iPhone, which allows users to locate trained, experienced babysitters within a specific zip code in the U.S. You would like to market the app through Apple's App Store, but need to develop an estimate of potential users who might purchase it. You have determined that iPhone users ten

General mechanical ventilation system

Discuss some of the problems that might be encountered when implementing OSHA's machine guarding standards in the workplace. Do you feel that the standards are adequate to control machine guarding hazards in general industry? Why, or why not? and Discuss some of the circumstances where mechanical ventilation is required

Riordan Manufacturing, Inc.

I need assistance with a powerpoint with speaker notes and cited references on Riordan Manufacturer. The first attachment is the actual assignment and the 2nd attachment is the detailed requirements. Please let me know if more details is required.

Mock study instrument and validity

Describe an instrument selected for a mock study and its appropriateness. Describe its reliability and validity as reported in the literature, and its cultural appropriateness to your population. Identify if you would need to modify the instrument, and if so, what that modification might be and the rationale. If the instrument