Exam 20: Total Quality Management

Ground coffee empties into a chute containing a roll of plastic,which forms a sealed bag of coffee.From every ten bags filled,four are randomly sampled and weighed to see if the mean is correct (the process in control).The average mean for twenty samples of four equals 6.01 ounces.The average range of the twenty samples is 0.08 ounces.What will be the 3-sigma lower control limit for the mean chart?

What is a process flow chart,and how can it contribute to the goals of total quality management?

Samples Twenty-five samples of size 4 were taken from a production process.The mean of the sample means is $\bar {\bar x}$ = 13.9.The process standard deviation is known to be $\sigma$ = 3.5.The sample means are listed below. Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 15.1 10.9 17.6 10.0 13.8 9.9 17.7 6.1 5.9 16.9 11.1 12.1 9.4 Sample 14 15 16 17 18 19 20 21 22 23 24 25 13.2 11.1 16.9 9.3 10.0 12.0 18.2 21.1 21.7 16.9 19.1 21.5 -Plot the sample means on a control chart.

Perceived quality refers to attributes that relate to the human senses,for example,how a product looks,feels,tastes,or smells.

The Pareto diagram,also known as the Juran diagram,is a bar chart describing the relative frequencies with which various kinds of defects,or nonconformities,have occurred.

What is a control chart,and what purpose does it serve?

The idea of total quality management in a word from the Japanese is "Kaizen" or improvement.In his 1986 book,Kaizen,author ____________________ describes the concept that Kaizen represents.

A particular golfer is obsessed with making 10 foot putts.Each day that he practices,he puts 60 times and counts his misses.The following table indicates how he has done over the last 10 practices. Day Number of Mis5es 1 15 2 10 3 12 4 16 5 14 6 8 7 10 8 13 9 10 10 12 Set up a 3-sigma control chart using the previous data.

The TQM philosophy of defect prevention has quality integrated throughout the organizational structure and central to corporate thinking in all matters.

In a manufacturing process,if cereal boxes are being filled by a machine,describe how assignable variation might affect the content weight of the individual boxes.

An electronics part manufacturer reprimanded an employee.The number of defective parts produced by the employee increased.The increase in the number of defective parts is probably an example of:

Which of the following describes the purpose of statistical process control (defect-prevention)?

When the only sources of variation in a production process are caused by chance,and random variation remains within acceptable limits,the process is said to be:

What is competitive benchmarking,and how can it be used?

Organizations seeking to improve the quality of their goods and services are increasingly adopting the principles and practices of ________________________________________.

The "fraction-defective" control chart is an alternative term for the:

Which of the following relates to costs of conformance?

Bottles A bottle filling machine fills bottles with 16 oz of soda.Each hour,3 bottles are weighed on a precision scale to determine if the process is under control.The following data has been collected from the last 4 hours.Each value in the table represents the weight of an individual bottle. Time Bottle 1 Bottle2 Bottle 3 7AM 16.3 16.4 15.8 16.0 16.2 16.4 9 AM 15.7 16.1 16.3 16.0 15.9 16.2 -At 11:00 AM,the weights of the following three bottles were recorded: 16.0,16.7,15.2.According to this sample,is the process in control?

Thirty samples of size 1200 were drawn from a manufacturing process and the number of defectives in each sample was counted.The mean sample proportion was 0.04.The upper control limit for the 3-sigma p chart is:

Fifty samples of size 600 were drawn from a manufacturing process and the number of defectives in each sample was counted.The mean sample proportion was 0.025.The lower control limit for the 3-sigma p chart is: