1. QUESTION 1 TABLE 17-1 A local newspaper has 10 delivery boys who each deliver the morning paper to 50 customers every day. The owner decides to record the number of papers delivered on time for a 10-day period for one of the delivery boys and construct a p chart to see whether the percentage is too erratic. Referring to Table 17-1, what is the numerical value of the center line for the p chart? 0.92 6 0.91 1 0.88 5 0.50 0 1 points 1. QUESTION 2 TABLE 17-1 A local newspaper has 10 delivery boys who each deliver the morning paper to 50 customers every day. The owner decides to record the number of papers delivered on time for a 10-day period for one of the delivery boys and construct a p chart to see whether the percentage is too erratic. Referring to Table 17-1, what is the numerical value of the lower control limit for the p chart? 0.92 0 0.91 1 0.81 5 0.79 8 1 points 1. QUESTION 3 TABLE 17-1 A local newspaper has 10 delivery boys who each deliver the morning paper to 50 customers every day. The owner decides to record the number of papers delivered on time for a 10-day period for one of the delivery boys and construct a p chart to see whether the percentage is too erratic. Referring to Table 17-1, what is the numerical value of the upper control limit for the p chart? 0.92 6 0.96 1 0.97 9 1.03 7 1 points 1. QUESTION 4 TABLE 17-1 A local newspaper has 10 delivery boys who each deliver the morning paper to 50 customers every day. The owner decides to record the number of papers delivered on time for a 10-day period for one of the delivery boys and construct a p chart to see whether the percentage is too erratic. Referring to Table 17-1, which expression best characterizes the p chart? Cycles Increasing trend In-control Individual outliers 1 points QUESTION 5 1. TABLE 17-2 A political pollster randomly selects a sample of 100 voters each day for 8 successive days and asks how many will vote for the incumbent. The pollster wishes to construct a p chart to see if the percentage favoring the incumbent candidate is too erratic. Referring to Table 17-2, what is the numerical value of the center line for the p chart? 0.5 3 0.5 6 0.6 3 0.6 6 1 points QUESTION 6 1. TABLE 17-2 A political pollster randomly selects a sample of 100 voters each day for 8 successive days and asks how many will vote for the incumbent. The pollster wishes to construct a p chart to see if the percentage favoring the incumbent candidate is too erratic. Referring to Table 17-2, what is the numerical value of the lower control limit for the p chart? 0.3 7 0.4 1 0.5 0 0.7 1 1 points 1. QUESTION 7 TABLE 17-2 A political pollster randomly selects a sample of 100 voters each day for 8 successive days and asks how many will vote for the incumbent. The pollster wishes to construct a p chart to see if the percentage favoring the incumbent candidate is too erratic. Referring to Table 17-2, what is the numerical value of the upper control limit for the p chart? 0.9 2 0.8 9 0.7 1 0.6 2 1 points 1. QUESTION 8 TABLE 17-2 A political pollster randomly selects a sample of 100 voters each day for 8 successive days and asks how many will vote for the incumbent. The pollster wishes to construct a p chart to see if the percentage favoring the incumbent candidate is too erratic. Referring to Table 17-2, which expression best characterizes the p chart? In-control Increasing trend Decreasing trend Individual outliers 1 points QUESTION 9 1. TABLE 17-3 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 Table 17-3, 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? 4. 8 6. 0 6. 9 7. 1 1 points 1. QUESTION 10 TABLE 17-3 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 Table 17-3, suppose the analyst constructs an R chart to see if the variability in production times is in-control. What is the lower control limit for this R chart? 4.8 4 3.3 7 2.9 8 1.3 4 1 points 1. QUESTION 11 TABLE 17-3 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 Table 17-3, suppose the analyst constructs an R chart to see if the variability in production times is in-control. What is the upper control limit for this R chart? 10.6 6 9.37 7.98 6.34 1 points QUESTION 12 1. TABLE 17-3 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 Table 17-3, 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? Increasing trend Decreasing trend In-control Points outside the control limits 1 points 1. QUESTION 13 TABLE 17-3 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 Table 17-3, suppose the sample mean and range data were based on 11 observations per day instead of 10. How would this change affect the lower and upper control limits of the R chart? LCL would increase; UCL would decrease. LCL would remain the same; UCL would decrease. Both LCL and UCL would remain the same. LCL would decrease; UCL would increase. 1 points 1. QUESTION 14 TABLE 17-3 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 Table 17-3, suppose the analyst constructs an chart to see if the production process is in-control. What is the center line for this chart? 64. 3 59. 5 58. 0 57. 1 1 points QUESTION 15 1. TABLE 17-3 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 Table 17-3, suppose the analyst constructs an chart to see if the production process is in-control. What is the lower control limit (LCL) for this chart? 47.6 0 56.1 5 57.1 5 58.0 5 1 points QUESTION 16 1. TABLE 17-3 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 Table 17-3, suppose the analyst constructs an chart to see if the production process is in-control. What is the upper control limit (UCL) for this chart? 62.1 5 60.9 5 59.8 5 58.7 5 1 points QUESTION 17 1. TABLE 17-3 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 Table 17-3, suppose the analyst constructs an chart to see if the production process is in-control. Which expression best describes this chart? In-control Increasing trend Decreasing trend Individual outliers 1 points QUESTION 18 1. TABLE 17-4 A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits. The supervisor proceeds by randomly sampling 5 individuals per hour for a period of 10 hours. The sample mean and range for each hour are listed below. She also decides that lower and upper specification limit for the critical-toquality variable should be 10 and 30 seconds, respectively. Referring to Table 17-4, suppose the supervisor constructs an R chart to see if the variability in collection times is in-control. What is the center line of this R chart? 20.0 0 20.5 6 20.4 0 24.0 0 1 points QUESTION 19 1. TABLE 17-4 A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits. The supervisor proceeds by randomly sampling 5 individuals per hour for a period of 10 hours. The sample mean and range for each hour are listed below. She also decides that lower and upper specification limit for the critical-toquality variable should be 10 and 30 seconds, respectively. Referring to Table 17-4, suppose the supervisor constructs an R chart to see if the variability in collection times is in-control. What are the lower and upper control limits for this R chart? -2.33, 43.13 -2.28, 42.28 0, 42.28 0, 43.13 1 points QUESTION 20 1. TABLE 17-4 A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits. The supervisor proceeds by randomly sampling 5 individuals per hour for a period of 10 hours. The sample mean and range for each hour are listed below. She also decides that lower and upper specification limit for the critical-toquality variable should be 10 and 30 seconds, respectively. Referring to Table 17-4, suppose the supervisor constructs an R chart to see if the variability in collection times is in-control. This R chart is characterized by which of the following? Decreasing trend Increasing trend In-control Individual outliers 1 points 1. QUESTION 21 TABLE 17-4 A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits. The supervisor proceeds by randomly sampling 5 individuals per hour for a period of 10 hours. The sample mean and range for each hour are listed below. She also decides that lower and upper specification limit for the critical-toquality variable should be 10 and 30 seconds, respectively. Referring to Table 17-4, suppose the sample mean and range data were based on 6 observations per hour instead of 5. How would this change affect the lower and upper control limits of an R chart? LCL would increase; UCL would decrease. LCL would remain the same; UCL would decrease. Both LCL and UCL would remain the same. LCL would decrease; UCL would increase. 1 points 1. QUESTION 22 TABLE 17-4 A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits. The supervisor proceeds by randomly sampling 5 individuals per hour for a period of 10 hours. The sample mean and range for each hour are listed below. She also decides that lower and upper specification limit for the critical-toquality variable should be 10 and 30 seconds, respectively. Referring to Table 17-4, suppose the supervisor constructs an the process is in-control. What is the center line of the chart? 20.0 0 20.2 6 21.0 0 24.2 6 chart to see if 1 points QUESTION 23 1. TABLE 17-4 A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits. The supervisor proceeds by randomly sampling 5 individuals per hour for a period of 10 hours. The sample mean and range for each hour are listed below. She also decides that lower and upper specification limit for the critical-toquality variable should be 10 and 30 seconds, respectively. Referring to Table 17-4, suppose the supervisor constructs an chart to see if the process is in-control. What are the lower and upper control limits of this chart? 10.00, 30.00 8.49, 32.03 5.39, 35.13 4.96, 35.56 1 points 1. QUESTION 24 TABLE 17-4 A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits. The supervisor proceeds by randomly sampling 5 individuals per hour for a period of 10 hours. The sample mean and range for each hour are listed below. She also decides that lower and upper specification limit for the critical-toquality variable should be 10 and 30 seconds, respectively. Referring to Table 17-4, suppose the supervisor constructs an chart to see if the process is in-control. Which expression best describes this chart? Decreasing trend In-control Increasing trend Individual outliers 1 points 1. QUESTION 25 Which of the following best measures the ability of a process to consistently meet specified customer-driven requirement? Process capability. Specification limits Upper control limit Lower control limit 1 points QUESTION 26 1. Which of the following is a method for breaking process into a series of steps in order to eliminate defects and produce near perfect results? Deming's 14 points management Six Sigma management Shewhart-Deming cycle R chart and chart 1 points QUESTION 27 1. Which of the following situations suggests a process that appears to be operating in a state of statistical control? A control chart with a series of consecutive points that are above the center line and a series of consecutive points that are below the center line A control chart in which no points fall outside either the upper control limit or the lower control limit and no patterns are present A control chart in which several points fall outside the upper control limit All of these. 1 points 1. QUESTION 28 Which of the following situations suggests a process that appears to be operating out of statistical control? A control chart with a series of consecutive points that are above the center line and a series of consecutive points that are below the center line A control chart in which points fall outside the lower control limit A control chart in which several points fall outside the upper control limit All of these. 1 points QUESTION 29 1. The principal focus of the control chart is the attempt to separate special or assignable causes of variation from common causes of variation. Which causes of variation can be reduced only by changing the system? Special or assignable causes Common causes Total causes None of these 1 points QUESTION 30 1. Variation signaled by individual fluctuations or patterns in the data is called special or assignable causes. common or chance causes. explained variation. the standard deviation