Exam 19: Statistical Applications in Quality Management Online

The SS method involves methods that enable participants to reduce setup time for equipment and resources and materials needed for changeover.

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, what percentage of the chips will fall below the upper specification limit?

Poke-Yoke devices establish ways to eliminate unnecessary housekeeping aspects of a work environment.

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.One way to obtain the control limits is to take the grand mean and add and subtract the product of times the mean of the sample ranges.For this data set, the value of is ________.

The SS method establishes ways to clean and maintain the necessary housekeeping aspects of a work environment.

Common causes of variation represent variation due to the inherent variability in the system.

The is a one-sided specification limit.

Which of the following situations suggests a process that appears to be operating out of statistical control?

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, what is the value of factor?

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 center line of this chart is located at __________.

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, based on the chart for the number of blemishes, it appears that the process is out of control.

SCENARIO 19-6 The maker of a packaged candy wants to evaluate the quality of her production process.On each of 16 consecutive days, she samples 600 bags of candy and determines the number in each day's sample that she considers to be of poor quality.The data that she developed follow. -Referring to Scenario 19-6, a p control chart is to be constructed for these data.The estimate of the standard error of the sample proportion is __________.

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 R chart is to be constructed for the time required to register. The upper control limit for this data set is ________.

Which of the following best measures the ability of a process to consistently meet specified customer-driven requirements?

SCENARIO 19-6 The maker of a packaged candy wants to evaluate the quality of her production process.On each of 16 consecutive days, she samples 600 bags of candy and determines the number in each day's sample that she considers to be of poor quality.The data that she developed follow. -Referring to Scenario 19-6, the estimate of the proportion of poor quality bags of candy is __________.

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.The R chart is characterized by which of the following?

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 R chart is to be constructed for the weight.The center line of this R chart is located at __________.

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, estimate the percentage of the cans whose weight is inside the specification limit.

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 R chart is to be constructed for the time required to register. One way to create the lower control limit involves multiplying the mean of the sample ranges by D .For this data set, the value of is ________.

Changes in the system to reduce common cause variation are the responsibility of management.