Exam 5: Managing Quality

The probability of rejecting a lot with quality better than the acceptable quality level is:

Process owners are empowered employees that have the authority and responsibility for improving the organization's business processes.

With everything else held constant,a sampling plan with c = 1 will have a lower producer's risk than a sampling plan with .

The upper and lower limits of a control chart should be wider than the upper and lower tolerance limits.

A pizza delivery service wants to track their delivery times.They take eight samples of four deliveries and record the following data.What are the upper and lower control limits of their X-bar chart?

________ measures refer to the presence or absence of a particular characteristic.

On the first day of class at a new university you made judgments about the quality of the class before the professor had entered the room.You noted the comfort of the accommodations,the fine works of art in the halls and on the classroom wall and the soothing music piped in over the sound system.This dimension of quality is:

A cell phone manufacturer inspects the video display on each color phone to verify that the screen can display all colors with the brilliance their customers have come to expect.Each phone is turned on,run through a self-test procedure,and classified as either acceptable or unacceptable based on test performance.Based on historical data,the manufacturer produces 0.1 percent defective displays.If they inspect 5000 phones each day for the next 10 days,what are the upper and lower control limits for their control chart if their sample mean mirrors their historical process average?

Taguchi's quality loss function runs counter to the notion that product falling within tolerance limits is acceptable.

A cell phone manufacturer inspects the video display on each color phone to verify that the screen can display all colors with the brilliance their customers have come to expect.Each phone is turned on,run through a self-test procedure,and classified as either acceptable or unacceptable based on test performance.The production team takes a sample of 350 phones and finds one with a defective display.How many additional phones should they sample to establish an average fraction defective for their statistical quality control initiative?

A tailor decides to use Taguchi's quality loss function to analyze his shirt making process.Knowing it to be parabolic in shape and of the form L(y)= k(y - t)² where t is the target,y is the actual measurement,and k is the process constant,the tailor decides to use a recent customer order to calculate his process parameters.He takes the custom shirt and measures the collar,which was requested to have a 17.5" collar but actually has a 17.75" collar.The customer notices the difference and demands a 50% reduction in the price of the shirt,which cost the tailor $45 to make.Instead of selling the shirt for $175,the tailor will reduce his price to $87.50.What is the tailor's process constant for a silk shirt?

Joseph Juran's definition of quality as "fitness for use" is an example of the value perspective of quality.

Producer's risk rises as consumer's risk falls.

Floyd Electric is fabricating flanges for a new electrical motor.The flange is to be 25 millimeters in diameter with an upper tolerance limit of 26.5 millimeters and a lower tolerance limit of 23.5 millimeters.Bill Floyd took a sample consisting of ten flanges,measured the diameter and recorded the observations in the table. What is Floyd Electric's process capability index?

A technique used to translate customer requirements into technical requirements is:

An R chart is used to track how much the individual observations within a sample vary.

A cell phone manufacturer inspects the video display on each color phone to verify that the screen can display all colors with the brilliance their customers have come to expect.Each phone is turned on,run through a self-test procedure,and classified as either acceptable or unacceptable based on test performance.Based on historical data,the process engineer expects about 0.1 percent defective displays.How many phones should they sample to establish an average fraction defective for their statistical quality control initiative?

The fill size for a small bag of peanuts distributed by a popular airline is 50 grams.The producer wishes to set up a set of control charts for this process and collects the data shown in the table.What are the upper and lower control limits of their X-bar chart?