Exam 14: Statistical Process Control

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Seven points in succession,all increasing or decreasing in a process chart are called ________.

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process drift

Every 10th product coming off a production line is inspected to check for quality.Such a sampling technique is called ________.

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systematic sampling

A measurement to determine if a defect is either present or not is known as a(n)________.

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attribute

Graphs designed to signal process workers when nonrandom variation occurs in a process are called ________.

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

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Use the information below to answer the following question(s). Use the "Factors for Control Limits" Table A.3 from the textbook where required:  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:   \begin{array} { | l | l | l | l | l | }  \hline \text { Sample } & \text { Observation } 1 & \text { Observation } 2 & \text { Observation } 3 & \text { Observation 4 } \\ \hline 1 & 250 & 253.5 & 249 & 251.2 \\ \hline 2 & 252 & 250.3 & 252 & 249.5 \\ \hline 3 & 247.6 & 251 & 250 & 249.8 \\ \hline 4 & 253.5 & 249 & 251 & 250.3 \\ \hline 5 & 252 & 248.5 & 249.8 & 250.7 \\ \hline \end{array}  -What is the LCL for a X-bar chart? 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: Sample Observation 1 Observation 2 Observation 3 Observation 4 1 250 253.5 249 251.2 2 252 250.3 252 249.5 3 247.6 251 250 249.8 4 253.5 249 251 250.3 5 252 248.5 249.8 250.7 -What is the LCL for a X-bar chart?

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Samples gathered in such a way that every piece of product has an equal chance of being selected for inspection are called

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

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Concluding that a process is stable means only ________ variation is present in the process.

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

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

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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.Is the process capable of meeting the required specifications?

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

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A process that is stable has no variation present in the process.

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A measurement to determine if a defect is either present or not is known as

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Samples gathered in such a way that every piece of product has an equal chance of being selected for inspection are called systematic samples.

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

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

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Use the information below to answer the following question(s). Use the "Factors for Control Limits" Table A.3 from the textbook where required:  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:   \begin{array} { | l | l | l | l | l | }  \hline \text { Sample } & \text { Observation } 1 & \text { Observation } 2 & \text { Observation } 3 & \text { Observation 4 } \\ \hline 1 & 250 & 253.5 & 249 & 251.2 \\ \hline 2 & 252 & 250.3 & 252 & 249.5 \\ \hline 3 & 247.6 & 251 & 250 & 249.8 \\ \hline 4 & 253.5 & 249 & 251 & 250.3 \\ \hline 5 & 252 & 248.5 & 249.8 & 250.7 \\ \hline \end{array}  -What is the value of the average range R-bar? 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: Sample Observation 1 Observation 2 Observation 3 Observation 4 1 250 253.5 249 251.2 2 252 250.3 252 249.5 3 247.6 251 250 249.8 4 253.5 249 251 250.3 5 252 248.5 249.8 250.7 -What is the value of the average range R-bar?

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Samples gathered in such a way that every piece of product has an equal chance of being selected for inspection are called ________.

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