Exam 18: Statistical Quality Control

Nels Neugent,Purchasing Manager at Mid-West Medical Center,is designing a p chart to monitor the proportion of defective purchase orders issued at Mid-West.He has the proportions defective for 22 samples of purchase orders.Each sample contains 150 purchase orders,and the average proportion defective is 0.08. The centerline for Nels's p chart is ___________.

A plot of the sample ranges over regular time intervals is called a(n)_______.

Quality control is the collection of strategies,techniques,and actions taken by an organization to assure itself that it is producing a quality product.

Jack Joyner,Director of Quality Control at Covington Castings (CC),is designing a c chart to monitor the number of nonconformances per aluminum casting produced at CC. The total number of nonconformances for 26 castings is 91.The lower control limit for Jack's c chart is ___________.

Sarah Soliz,Director of Quality Programs,is designing and R charts for the rod shearing process at Stockton Steel.She has 26 samples of rod length,and each sample included measurements of 5 rods.The mean of the 26 sample means is 112 inches,and mean of the 26 ranges is 0.15 inch.The lower control limit for her R chart is ____.

Which of the following is not true or accurate about Poka-Yoke?

If a process is in control,less than 0.3% of all the points that represent the process output such as the average measurement or the proportion defective should be beyond the upper and lower control limits.

A graph that plots the proportions of items in noncompliance for multiple samples is called a(n)_______.

If no variation occurred between manufactured items,the resulting points on a control chart would form a horizontal line.

Sarah Soliz,Director of Quality Programs,is designing and R charts for the rod shearing process at Stockton Steel.She has 26 samples of rod length,and each sample included measurements of 5 rods.The mean of the 26 sample means is 112 inches,and mean of the 26 ranges is 0.15 inch.The centerline for her R chart is ____.

Sarah Soliz,Director of Quality Programs,is designing and R charts for the rod shearing process at Stockton Steel.She has 26 samples of rod length,and each sample included measurements of 5 rods.The mean of the 26 sample means is 112 inches,and mean of the 26 ranges is 0.15 inch.The lower control limit for her chart is ____.

An advantage of a just-in-time inventory system is _________.

For a p chart,UCL = 0.64 and LCL = 0.32.Then q = ______.

Edward Deming is a quality guru whose principles of quality management can be summarized through four basic tenets,or "Absolutes".

According to Garvin,transcendent quality implies that a product __________.

Jake Flanaghan,Vice President for inpatient pharmacy,at Great Atlantic Medical Center,is designing a c chart to monitor the number of inpatient medication errors that occur each month. The total number of medication errors for January - December last year was 37. The centerline for Jake's c chart is ___________.

For a p chart,the standard deviation of the proportions is 0.079057.The number of items in each sample is 30.Then p is ______.

A c chart used for statistical quality control is a chart that shows the count of defects in the process output.

Inspecting the attributes of a finished product to determine whether the product is acceptable,is in need of rework,or is to be rejected is called after-process quality control.

An R Chart is to be developed for use in quality control. The average of the ranges is calculated to be 0.45.The sample sizes were 9 each.What would the upper control limit be?