Exam 19: Statistical Applications in Quality Management Online

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The SS method establishes ways to eliminate unnecessary housekeeping aspects of a work environment.

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SCENARIO 19-8 Recently, a university switched to a new type of computer-based registration.The registrar is concerned with the amount of time students are spending on the computer registering under the new system.She decides to randomly select 8 students on each of the 12 days of the registration and determine the time each spends on the computer registering.The range, mean, and standard deviation of the times required to register are in the table that follows. SCENARIO 19-8 Recently, a university switched to a new type of computer-based registration.The registrar is concerned with the amount of time students are spending on the computer registering under the new system.She decides to randomly select 8 students on each of the 12 days of the registration and determine the time each spends on the computer registering.The range, mean, and standard deviation of the times required to register are in the table that follows.   -Referring to Scenario 19-8, an   chart is to be used for the time required to register.The lower control limit for this data set is ________, while the upper control limit is ________. -Referring to Scenario 19-8, an SCENARIO 19-8 Recently, a university switched to a new type of computer-based registration.The registrar is concerned with the amount of time students are spending on the computer registering under the new system.She decides to randomly select 8 students on each of the 12 days of the registration and determine the time each spends on the computer registering.The range, mean, and standard deviation of the times required to register are in the table that follows.   -Referring to Scenario 19-8, an   chart is to be used for the time required to register.The lower control limit for this data set is ________, while the upper control limit is ________. chart is to be used for the time required to register.The lower control limit for this data set is ________, while the upper control limit is ________.

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SCENARIO 19-7 A supplier of silicone sheets for producers of computer chips wants to evaluate her manufacturing process.She takes samples of size 5 from each day's output and counts the number of blemishes on each silicone sheet.The results from 20 days of such evaluations are presented below. SCENARIO 19-7 A supplier of silicone sheets for producers of computer chips wants to evaluate her manufacturing process.She takes samples of size 5 from each day's output and counts the number of blemishes on each silicone sheet.The results from 20 days of such evaluations are presented below.   She also decides that the upper specification limit is 10 blemishes. -Referring to Scenario 19-7, an   chart is to be used for the number of blemishes.The lower control limit for this data set is ________, while the upper control limit is ________. She also decides that the upper specification limit is 10 blemishes. -Referring to Scenario 19-7, an SCENARIO 19-7 A supplier of silicone sheets for producers of computer chips wants to evaluate her manufacturing process.She takes samples of size 5 from each day's output and counts the number of blemishes on each silicone sheet.The results from 20 days of such evaluations are presented below.   She also decides that the upper specification limit is 10 blemishes. -Referring to Scenario 19-7, an   chart is to be used for the number of blemishes.The lower control limit for this data set is ________, while the upper control limit is ________. chart is to be used for the number of blemishes.The lower control limit for this data set is ________, while the upper control limit is ________.

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SCENARIO 19-7 A supplier of silicone sheets for producers of computer chips wants to evaluate her manufacturing process.She takes samples of size 5 from each day's output and counts the number of blemishes on each silicone sheet.The results from 20 days of such evaluations are presented below. SCENARIO 19-7 A supplier of silicone sheets for producers of computer chips wants to evaluate her manufacturing process.She takes samples of size 5 from each day's output and counts the number of blemishes on each silicone sheet.The results from 20 days of such evaluations are presented below.   She also decides that the upper specification limit is 10 blemishes. -Referring to Scenario 19-7, an R chart is to be constructed for the number of blemishes. The center line of this R chart is located at __________. She also decides that the upper specification limit is 10 blemishes. -Referring to Scenario 19-7, an R chart is to be constructed for the number of blemishes. The center line of this R chart is located at __________.

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SCENARIO 19-9 The manufacturer of canned food constructed control charts and analyzed several quality characteristics.One characteristic of interest is the weight of the filled cans.The lower specification limit for weight is 2.95 pounds.The table below provides the range and mean of the weights of five cans tested every fifteen minutes during a day's production. SCENARIO 19-9 The manufacturer of canned food constructed control charts and analyzed several quality characteristics.One characteristic of interest is the weight of the filled cans.The lower specification limit for weight is 2.95 pounds.The table below provides the range and mean of the weights of five cans tested every fifteen minutes during a day's production.   -Referring to Scenario 19-9, based on the R chart, it appears that the process is out of control. -Referring to Scenario 19-9, based on the R chart, it appears that the process is out of control.

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SCENARIO 19-10 Below is the number of defective items from a production line over twenty consecutive morning shifts. SCENARIO 19-10 Below is the number of defective items from a production line over twenty consecutive morning shifts.   -Referring to Scenario 19-10, based on the c chart, no opportunity appears to be present to render an improvement in the process. -Referring to Scenario 19-10, based on the c chart, no opportunity appears to be present to render an improvement in the process.

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The control chart

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SS method focuses on preventing the causes of defects.

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Maintaining the gains that have been made with a revised process in the long term by avoiding potential problems that can occur when a process is changed involves which part of the DMAIC process?

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SCENARIO 19-9 The manufacturer of canned food constructed control charts and analyzed several quality characteristics.One characteristic of interest is the weight of the filled cans.The lower specification limit for weight is 2.95 pounds.The table below provides the range and mean of the weights of five cans tested every fifteen minutes during a day's production. SCENARIO 19-9 The manufacturer of canned food constructed control charts and analyzed several quality characteristics.One characteristic of interest is the weight of the filled cans.The lower specification limit for weight is 2.95 pounds.The table below provides the range and mean of the weights of five cans tested every fifteen minutes during a day's production.   -Referring to Scenario 19-9, an   chart is to be used for the weight.The lower control limit for this data set is ________, while the upper control limit is ________. -Referring to Scenario 19-9, an SCENARIO 19-9 The manufacturer of canned food constructed control charts and analyzed several quality characteristics.One characteristic of interest is the weight of the filled cans.The lower specification limit for weight is 2.95 pounds.The table below provides the range and mean of the weights of five cans tested every fifteen minutes during a day's production.   -Referring to Scenario 19-9, an   chart is to be used for the weight.The lower control limit for this data set is ________, while the upper control limit is ________. chart is to be used for the weight.The lower control limit for this data set is ________, while the upper control limit is ________.

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SCENARIO 19-3 A quality control analyst for a light bulb manufacturer is concerned that the time it takes to produce a batch of light bulbs is too erratic.Accordingly, the analyst randomly surveys 10 production periods each day for 14 days and records the sample mean and range for each day. SCENARIO 19-3 A quality control analyst for a light bulb manufacturer is concerned that the time it takes to produce a batch of light bulbs is too erratic.Accordingly, the analyst randomly surveys 10 production periods each day for 14 days and records the sample mean and range for each day.   -Referring to Scenario 19-3, suppose the analyst constructs an R chart to see if the variability in production times is in-control.What is the center line of this R chart? -Referring to Scenario 19-3, suppose the analyst constructs an R chart to see if the variability in production times is in-control.What is the center line of this R chart?

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_______ causes of variation are correctable without modifying the system.

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Total Productive Maintenance focuses on preventing the causes of defects.

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The focus of Lean Six Sigma is on removing non-value added steps and waste which can exist in any part of an organization.

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SMED establishes ways to clean and maintain the necessary housekeeping aspects of a work environment.

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Quick Changeover Techniques involve methods that enable participants to reduce setup time for equipment and resources and materials needed for changeover.

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SCENARIO 19-3 A quality control analyst for a light bulb manufacturer is concerned that the time it takes to produce a batch of light bulbs is too erratic.Accordingly, the analyst randomly surveys 10 production periods each day for 14 days and records the sample mean and range for each day. SCENARIO 19-3 A quality control analyst for a light bulb manufacturer is concerned that the time it takes to produce a batch of light bulbs is too erratic.Accordingly, the analyst randomly surveys 10 production periods each day for 14 days and records the sample mean and range for each day.   -Referring to Scenario 19-3, suppose the analyst constructs an   chart to see if the production process is in-control.Which expression best describes this chart? -Referring to Scenario 19-3, suppose the analyst constructs an SCENARIO 19-3 A quality control analyst for a light bulb manufacturer is concerned that the time it takes to produce a batch of light bulbs is too erratic.Accordingly, the analyst randomly surveys 10 production periods each day for 14 days and records the sample mean and range for each day.   -Referring to Scenario 19-3, suppose the analyst constructs an   chart to see if the production process is in-control.Which expression best describes this chart? chart to see if the production process is in-control.Which expression best describes this chart?

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The cause of variation that can be reduced only by changing the system is ______ cause variation.

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TPM establishes ways to eliminate unnecessary housekeeping aspects of a work environment.

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Quick Changeover Techniques is among the tools of Lean Six Sigma.

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