Operations Management
17th Edition
ISBN: 9781259142208
Author: CACHON, Gérard, Terwiesch, Christian
Publisher: Mcgraw-hill Education,
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Question
Chapter 9, Problem 10CQ
Summary Introduction
To determine: The element that is not a part of an X-bar control chart.
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Students have asked these similar questions
Increasing sample size n will affect the control limits of xbar chart and R chart in which way?
Select one:
a. Widening the control limits of xbar chart and narrowing the control limits of R chart
b. Do not change the control limits of both charts
c. Narrowing the control limits of both xbar and R charts
d. Widening the control limits of both xbar and R charts
e. Narrowing the control limits of xbar chart and widening the control limits of R chart
About the OC curve for p chart, which statement is INCORRECT?
Select one:
a. None of those listed
b. There is one particular point on the OC curve at which β=1-α
c. The y-axis of the OC curve is β
d. The maximum β exists when p is equal to the center line of the control chart
e. β is computed based on binomial distribution
The “failure” in checking the quality of each product unit in using p chart and np chart often means
Select one:
a. Nonconforming to the specification
b. Nonconforming to the control limits
c. Conforming to the control limits
d. Conforming to the specification
e. None of those listed
Chapter 9 Solutions
Operations Management
Ch. 9 - Prob. 1CQCh. 9 - Prob. 2CQCh. 9 - Prob. 3CQCh. 9 - Prob. 4CQCh. 9 - Prob. 5CQCh. 9 - Prob. 6CQCh. 9 - Prob. 7CQCh. 9 - Prob. 8CQCh. 9 - Prob. 9CQCh. 9 - Prob. 10CQ
Ch. 9 - Prob. 11CQCh. 9 - Prob. 12CQCh. 9 - Prob. 13CQCh. 9 - Prob. 14CQCh. 9 - Prob. 15CQCh. 9 - Prob. 16CQCh. 9 - Prob. 17CQCh. 9 - Prob. 18CQCh. 9 - Prob. 1PACh. 9 - Prob. 2PACh. 9 - Prob. 3PACh. 9 - Prob. 4PACh. 9 - Prob. 5PACh. 9 - Prob. 6PACh. 9 - Prob. 7PACh. 9 - Prob. 8PACh. 9 - Prob. 9PACh. 9 - Prob. 10PACh. 9 - Prob. 11PACh. 9 - Prob. 12PACh. 9 - Prob. 1CCh. 9 - Prob. 2C
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- Which of the following holds the best for a point that is outside the upper control limit of a R- chart Select one: a. should be investigated because an assignable cause of variation might be present b. is an indication that no cause of variation is present c should be ignored unless another point is outside that limit d. should be ignored because it signifies better than average qualityarrow_forwardIn quality assurance, to monitor characteristics that have discrete values and can be counted, we can use: a. control chart for variables b. control chart for attributes c. x-chart d. A&Carrow_forwardWhich of the following is NOT a common tool used in quality control a. acceptance sampling b. Pareto chart c. cause and effect diagram d. decision treesarrow_forward
- In quality assurance, to monitor characteristics that can be measured we can use: A. control chart for variables B. Control charts for attributes C. x-chart D. A&Carrow_forwardPlease do not give solution in image format thanku A normally distributed process uses 66.7% of the specification band. It is centered at the nominal dimension, located halfway between the upper and lower specification limits. a) Estimate ?? and ???. Interpret these ratios. b) What fallout level (fraction defective) is produced?arrow_forward7. The school board is trying to evaluate a new math program introduced to second-graders in five elementary schools across the county this year. A sample of the student scores on standardized math tests in each elementary school yielded the following data: School No. of Test Errors A 48 B 21 C 32 D 40 E 52 For the test errors, the c-chart with control limits that contain 99.73% of the random variation in test scores is: _____ Part 2 UCLc= _______ (round your response to two decimal places). LCLc= _______ (round your response to two decimal places). What does the chart tell you? Has the new math program been effective?arrow_forward
- Quality Management utilizes which type of control charts? a. X-bar, p-chart, c-chart b. Range, vector, SWOT c. WPI, IPW, Square chart d. All the Above e. None of the abovearrow_forwardGiven a c chart with UCL=10 LCL=0 when n=4. Revise it to find the new UCL and LCL of a c chart when n is changed to 1.arrow_forward8 A pizza delivery service wants to track their delivery times. They take eight samples of four deliveries and record the following data. What are the upper and lower control limits of their X-bar chart? (Note: Although it looks similar, the data in the table below is different from the data in the table relating to the UCL and LCL for the R chart.) Sample # 1 2 3 4 5 6 7 8 Item #1 21.1 20.2 24.6 22.6 23.7 20.9 22.4 20.7 Item #2 22.2 20.6 20 20.7 24.1 23.9 24.6 24.4 Item #3 23.0 24.5 23.2 23.0 20.7 22.8 23.0 22.8 Item #4 20.0 23.5 25.5 25.0 20.7 23.2 23.3 24.5 Sum 86.3 88.8 93.3 91.3 89.2 90.8 93.3 92.4 Group of answer choices 25.2, 20.0 25.4, 20.0 23.9, 21.3 24.1, 21.1arrow_forward
- Which the of the following holds the best for a point that is outside of the upper control limit on an R-chart Select one: a. should be ignored because it signifies better than average quality b. should be investigated because an assignable cause of variation might be present c. should be ignored unless another point is outside that limit d. is an indication that no cause of variation is presentarrow_forwardWhich of the following is NOT usually part of a control chart a. Centre line b. Lower control limit c. Out of control line d. Upper control limitarrow_forwardWhich cusum chart can be used to monitor process variability? a. The two-sided cusum with Ci+ and Ci- . b. The scale cusum with vi c. None of those listed d. The one-sided with Ci+ or Ci- . e. the standardized cusum with yiarrow_forward
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