Exam 14: Statistical Process Control

Use the information below to answer the following question(s). An inspector visually inspects 10 samples of 200 computer monitors each for defects.Using trained judgement,the inspector either accepts or rejects the monitors based on whether they are flawless.The table below gives the results of these inspections from the 10 samples: -What is the average proportion defective?

A control chart needs to be developed to determine if the temperature for a process is within control limits.The control chart which would be most appropriate to use in this situation would be the

Variation that centers on a mean and occurs with a somewhat consistent amount of dispersion is known as random variation.

The control chart used to measure the proportion defective is called the u chart.

A continuous measurement such as weight,height,or volume is known as an attribute.

p control charts are used with variable measurements.

The rule that states that sampling distributions generally are normally distributed is known as the ________.

Use the information below to answer the following question(s). An inspector visually inspects 10 samples of 200 computer monitors each for defects.Using trained judgement,the inspector either accepts or rejects the monitors based on whether they are flawless.The table below gives the results of these inspections from the 10 samples: -What is the UCL for a p chart?

A process that exhibits nonrandom variation is a(n)________ process.

Fifty sample measurements of the length of an automotive component yield a grand mean of 1.33 inches with an estimated standard deviation of 0.2 inches.The specification length is between 1.2 and 1.4 inches.Calculate the process capability index.

A comparative measure of the extent to which individual products meet specification is known as ________.

Use the information below to answer the following question(s).Use the "Factors for Control Limits" Table A.3 from the textbook where required: A control chart needs to be developed to determine if the temperature for a process is within control limits.Five samples each having 4 observations are taken and the sample measurements (temperature in degrees F)are noted in the table below: -What is the value of the average range R-bar?

The ability of a process to produce a product that meets specification is known as ________.

A process capability measure of 1.00 or below indicates that the process is capable.

The control chart used to monitor the dispersion of a process is called a(n)________ chart.

A bottling plant measures the volume of liquid in the bottle.The control chart which will be used with such a measurement is a

The cost of inspection for three different product characteristics A,B,and C,is $10,$12 and $8 respectively.The cost of failure if any one of them breaks down is $100 (full replacement cost of the product).What is the inspection ratio for B?

The control chart used to count the number nonconforming in a consistent sample space is called the c chart.

For process control charts,using control limits corresponding to z = 3 standard deviations from the mean will capture exactly 95% of random variation.

Adjusting a process when it only exhibits random variation is called ________.