Exam 18: Statistical Quality Control

A quality circle studying the problem of incorrect prices on purchase orders identified several potential causes: incorrect information from requesting department, out-of-date catalogs from suppliers, defective computer software, and worker practices in the purchasing department.These potential cause-and-effect relationships are best illustrated by a _______________.

An $\bar { x }$ chart is being developed using 15 samples of size 9 each.The average of 15 sample means is 6.20.The average of the 15 ranges is 0.30.The upper control limit is _______________.

Sarah Soliz, Director of Quality Programs, is designing $\bar { x }$ 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 $\bar { x }$ chart is ____.

For a p chart, UCL = 0.64 and LCL = 0.32.Then the overall percentage of compliant items is ______%.

You are conducting a study on the blood glucose levels of 9 patients who are on strict diets and exercise routines.To monitor the mean and range of the blood glucose levels of your patients, you take a blood glucose reading every day for each patient for 20 days.The results are shown below. Day Mean Range Day Mean Range 1 92.11 80 11 100.70 89 2 90.67 77 12 96.67 77 3 89.44 73 13 97.33 75 4 93.33 81 14 95.89 80 5 89.44 71 15 98.89 68 6 110.20 90 16 101.22 88 7 104.10 120 17 107.33 81 8 108.20 93 18 108.00 95 9 107.70 98 19 106.89 77 10 112.70 145 20 109.89 80 The centerline for your $\bar { x }$ chart is _________.

A Pareto chart is a diagnostic tool that displays possible causes of a quality problem and the interrelationships among the causes.

Two general types of control charts are (1)control charts for manufactured items and (2)control charts for services.

Say a manufacturer maintains a control chart of the overall product process and determines that the process is out of control too often across all shifts.Managers could most effectively start to determine potential causes by creating a ______________.

A recognized brand name product means higher quality to many consumers.Among Garvin's five quality types, this is an example of ___________________.

Which of the following is not usually an activity that would be included in a flowchart?

A schematic representation of all the activities and interactions that occur in a process is called a flowchart.

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

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

Sarah Soliz, Director of Quality Programs, is designing $\bar { x }$ 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 ____.

Six sigma ______.

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

Failure Mode Effect Analysis is best described as _________.

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

One definition that captures the spirit of most quality efforts in the business world is that quality results when a product delivers what is stipulated for it in its specifications.

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 centerline for Jack's c chart is ___________.