Exam 18: Statistical Quality Control

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. The centerline for your chart is _________.

Which of the following statements best describes Design for Six Sigma?

Ophelia O'Brien,VP of Consumer Credit of American First Banks (AFB),is designing a p chart to monitor the default rate on personal loans at the AFB member banks. Her data includes the proportion in default for 30 samples of personal loans.Each sample contains 50 loans,and the average of the 30 proportions is 0.05.The lower control limit for Ophelia's p chart is _____________.

Control charts are used to examine the output of a process for disturbing patterns or for data points that indicate that the process is out of control.

Upper and lower control limits are usually based upon _______.

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 lower control limit for Nels's p chart is ___________.

A company that uses benchmarking as a quality improvement practice will ________.

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.

A graph that plots the number of nonconformances per item for multiple samples is called a(n)_______.

According to Garvin,product quality is ____________________.

For a p chart,UCL = 0.64 and LCL = 0.32.The standard deviation of the proportions 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 mean of the 9 sample means is 101.03,and the mean of the 9 standard deviations is 29.243.The lower control limit for your 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 centerline for her chart is _________.

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 _______________.

According to the following Pareto chart,the Pareto principle would suggest a quality improvement team focus their efforts on which of the following complaints?

A p Chart is to be developed for use in quality control. The value of p is calculated to be 0.05.The sample size is 50.What would the upper control limit be?

Measuring product attributes at regular intervals throughout the manufacturing process in an effort to pinpoint problem areas is called in-process quality control.

A scatter diagram is a graphical mechanism for examining the relationship between two variables.

Six sigma ______.

Ophelia O'Brien,VP of Consumer Credit of American First Banks (AFB),is designing a p chart to monitor the default rate on personal loans at the AFB member banks. Her data includes the proportion in default for 30 samples of personal loans.Each sample contains 50 loans,and the average of the 30 proportions is 0.05.The upper control limit for Ophelia's p chart is _____________.