C720-WGU EXAM |70 QUESTIONS AND ANSWERS.

Why would the company use this check sheet? To develop a Pareto chart identifying the root causes of engine defects Which aspect of quality is demonstrated by a vehicle that has a useful life of 165,000 miles? Durability A quality improvement team is trying to illustrate to upper management how a process is varying over time as measurements are collected. Which two statistical process control (SPC) tools should the team use? Run charts and Control charts The CEO of a service company wants to change the strategy of the company from volume sales to high-quality products. Which philosophy should the CEO implement to emphasize quality over volume? Deming's 14 points A company sells garage doors through a national retailer and contracts with local installers to complete the installations. The operations manager is responsible for completing the installations in a 14-day period after the sale. The company will be penalized financially if it fails to achieve these objectives. The operations manager's daily responsibilities include contacting installers to expedite orders and ensure deadlines are met. Which two tools should be used to measure installer performance? Choose 2 answers Control charts to measure the time elapsed to completion and Run charts to chart output around the 14-day central tendency Which quality tool examines patterns, flow, and causes of variation of data points over time? Statistical process control A vice president of a major retailer is trying to reduce the wait time for customers in the checkout line by appropriately opening checkout lines. To do this, the VP needs to know the relationship and degree of correlation between monthly customer visits and area population. Which tool should be used in this situation? Scatter plot Which two company practices reflect the guiding principles of Six Sigma? Choose 2 answers A company tries to reduce variation in the quality of products it offers. A company emphasizes the quality of suppliers because the quality of outputs are determined by the quality of inputs. Six Sigma is adopted by a manufacturing company. How can the company use Six Sigma to establish quality improvement? There should be no more than 3.4 defects per million products from a manufacturing company statistically. A company makes rulers that are designed to be 20 cm in length with allowance ±0.1 cm. If the actual length of a ruler is 20.2 cm, which factor will the company use to judge the quality of the length of the rulers? Conformance Which quality management philosophy uses cause-and-effect fishbone diagrams for root-cause analysis, emphasizes a bottom-up approach to quality, and considers standardization and quality control to move together in improvement? Ishikawa's quality circle Which quality management philosophy assigns cost to quality, defines quality by how well a product can be used for its intended purpose, and uses Pareto charts? Juran Institute's management theory A clothing retailer sends out evaluations to customers to rate quality as "outstanding," "good," "average," and "bad." If the retailer wants to know the annual frequency of each evaluation category, which tool should the retailer use? Histogram An appliance manufacturer has two factories located around the world, each with its own capacity: • F1 can make 8 appliances per day. • F2 can make 10 per day. The factories can deliver to two different distribution centers. Every day each distribution center must receive 9 appliances each. The cost to deliver appliances from each factory to each distribution center is listed in the table below: Distribution Center 1 Distribution Center 2 F1 $4 $3 F2 $8 $3 Using the factory production constraints and the delivery costs in the above matrix, what is the lowest cost to deliver all 18 appliances to the distribution centers? $67 A children's clothing retailer is looking to build a store in a city that happens to be close to one of the company's distribution centers. The retailer opens a retail store on this city's busiest street, which also has other clothing retailers and a department store. Which two factors were influential in opening this store at this location? Choose 2 answers Proximity to customers and Proximity to competitors (clustering) A manager is planning staffing needs for a seasonal ice cream stand. The manager expects to have the following number of customers per day each month: January: 20 February: 23 March: 30 April: 60 May: 90 Jun: 120 July: 130 August: 150 September: 100 October: 80 November: 60 December: 30 Which capacity planning strategy should the manager use to achieve this customer demand? Match The original capacity in each process for a computer manufacturer's operations is as follows: Parts inventory: 500 units available per day Assembly: 300 units assembled per day Delivery: 450 units processed per day After the computer manufacturer upgrades the assembly system, it can assemble 550 units per day. According to this information, what is the throughput for this computer manufacturer? 450 units/day A rental company has a fleet of 50 cars that can be rented daily if all vehicles have been washed and inspected and are free of mechanical and electrical defects. Due to maintenance requirements and late returns by customers, the rental company is, in general, able to prepare 45 cars per day for rental. On average, 30 cars are rented daily. What is the efficiency rate for this company? 67% A company makes garage door tracks for residential and commercial customers. The production manager prefers to run all the footage for residential requirements first each day and then change over for the commercial size after the residential orders are completed. The tooling is changed back to the residential size before the end of business each day. Which process strategy is this company using? Batch processing with some product variety on moderately flexible equipment An auto service center that specializes in oil changes has two service bays that serve, on average, a total of 24 cars per eight-hour business day. On average, each bay can finish one oil change in 30 minutes. What is the design capacity? 32 oil changes An oil refinery receives crude oil on a regular basis, which must be refined into five different octane-rated gasoline formulas and diesel. Demand for these fuels is easy to predict. The cost to refine the oil decreases rapidly depending on the size of the refinery that refines the oil. Based on this information, which process strategy should the oil refinery use in its refining process? Continuous Flow A company wants to establish a new gas station in a location with heavy traffic. The company performs a traffic analysis for four locations during four different time periods. The table below depicts the number of cars that passed each location during the four time periods: Time Period Main Street Fell Avenue Veterans Parkway Market Street Midnight - 6:00 a.m. 1,000 500 1,500 750 6:00 a.m. - noon 4,500 6,000 5,500 4,000 Noon - 6:00 p.m. 6,000 4,500 6,000 5,000 6:00 p.m. - midnight 2,500 1,500 3,000 6,000 Which location should the company choose for the new gas station? Veterans Parkway A hospital administrator needs to determine how many beds to make available for exam rooms, operating rooms, and in-patient care. The hospital board announces they will be getting more patient referrals from specialists at a newly opened clinic. What should the adminstrator use to forecast how many beds to make available, given the increased number of patients? Weighted moving average using patient referral data A furniture company receives an order for 100 dining tables with four legs each. The planner has determined that the projected number of legs on hand is 60 units. If there is no previously scheduled production for legs, what will be the planned production of legs? 340 What is the time horizon for medium-range forecasting? 6 to 18 months A computer company receives an order for 100 computers from a customer inside of its lead time. The production planner agrees to support the order. Which two outputs will the MRP system issue? Choose 2 answers Planned order receipts and Expedite notice A bicycle company receives an order to deliver 200 bicycles by the end of the month. Which planning process will help this company to decide the required quantity of bicycle tires to meet the order? MRP