Operations Management
13th Edition
ISBN: 9781259667473
Author: William J Stevenson
Publisher: McGraw-Hill Education
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Chapter 10, Problem 4CTE
Summary Introduction
To determine: The situations where quality control charts are needed.
Introduction: Quality is a measure of excellence or a state of being free from deficiencies, defects and important variations. It is obtained by consistent and strict commitment to certain standards to attain uniformity of a product to satisfy consumers’ requirement.
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Chapter 10 Solutions
Operations Management
Ch. 10.2 - A potato chip is a delicate thing Fragile A pound...Ch. 10.2 - A potato chip is a delicate thing Fragile A pound...Ch. 10.5 - It's estimated that more than 7 000 hospital...Ch. 10.5 - It's estimated that more than 7 000 hospital...Ch. 10 - Prob. 1DRQCh. 10 - Prob. 2DRQCh. 10 - Prob. 3DRQCh. 10 - Prob. 4DRQCh. 10 - Prob. 5DRQCh. 10 - Prob. 6DRQ
Ch. 10 - Prob. 7DRQCh. 10 - Prob. 8DRQCh. 10 - Prob. 9DRQCh. 10 - Prob. 10DRQCh. 10 - Prob. 11DRQCh. 10 - Prob. 12DRQCh. 10 - Prob. 13DRQCh. 10 - Prob. 14DRQCh. 10 - Prob. 15DRQCh. 10 - Prob. 16DRQCh. 10 - Prob. 1TSCh. 10 - Prob. 2TSCh. 10 - Prob. 3TSCh. 10 - Prob. 1CTECh. 10 - Prob. 2CTECh. 10 - Prob. 3CTECh. 10 - Prob. 4CTECh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Prob. 11PCh. 10 - Prob. 12PCh. 10 - Prob. 13PCh. 10 - Prob. 14PCh. 10 - Prob. 15PCh. 10 - Prob. 16PCh. 10 - Prob. 17PCh. 10 - A production process consists of a three-step...Ch. 10 - Prob. 19PCh. 10 - Prob. 20PCh. 10 - Prob. 21PCh. 10 - Prob. 22PCh. 10 - Prob. 23PCh. 10 - Prob. 24PCh. 10 - Prob. 25PCh. 10 - Prob. 26PCh. 10 - Prob. 27PCh. 10 - Prob. 28PCh. 10 - Prob. 29PCh. 10 - Prob. 1.1CQCh. 10 - Prob. 2.1CQCh. 10 - Prob. 2.2CQCh. 10 - Prob. 2.3CQCh. 10 - Prob. 2.4CQ
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- Which of the following is not considered to be one of the seven basic quality tools 1)control charts 2)check sheet 3)histogram 4)ABC analysis 5)cause - and - effect diagramarrow_forwardplease answer all parts within 30 minutes.arrow_forwardScott Paper tests its toilet paper by subjecting 6 rolls to a wet stress test to see whether and how often the paper tears during the test. Following are the number of defectives found over the last 6 days: 2, 3, 1, 2, 2, and 3. Lower and upper control limits are, respectively: O a. 6.58 and 0 O b. O and 6.58 None of them O d. O and 6.24 O e. O and 6.90arrow_forward
- plz solve!!arrow_forwardControl charts are to be established on the manufacture of backpack frames. The revised fraction nonconforming is 0.08. Determine control limit lines for inspection rates of 1100 per day, 1500 per day, and 2100 per day. Draw the control chart. Why are the control limits not spaced equally? ( don't hand writing solution)arrow_forwardThe Healthy Chocolate Company makes a variety of chocolate candles, including a 12-ounce chocolate bar (340 grams) and a box of six 1-ounce chocolate bars (170 grams). a.Specifications for the 12-ounce bar are 322 grams to 358 grams. What is the largest standard deviation (In grams) that the machine that fills the bar molds can have and still be considered capable if the average fill is 340 grams? (Round your intermediate calculations to 2 decimal places and final answer to 3 decimal places.) Standard deviation b.The machine that filles the bar molds for the 6-ounce bars has a standard deviation of .84 grams. The filling machine is set to deliver an average of 1.04 ounces per bar. Specifications for the six-bar box are 150 to 190 grams per box. Is the process capable? Hint: The variance for the box is equal to six times the bar variance. Convert all calculations Into grams. O Yes O No grams c.What is the lowest setting in ounces for the filling machine that will provide capability in…arrow_forward
- The following data were collected on the number of nonconformities per unit for 10 time periods. Complete parts (a) and (b). Time 1 2 3 4 5 6 7 8 9 10 Nonconformities Per Unit 23 11 14 15 6 14 11 9 13 6 a. Construct the appropriate control chart and determine the LCL and UCL. What is the lower control limit? Select the correct choice below and fill in any answer boxes within your choice. A. LCL=enter your response here (Round to three decimal places as needed.) B. There is no lower control limit.arrow_forwardCan a production process be labeled as “out of control”because it is too good? Explain.arrow_forwardFujiyama Electronics wants to construct x - par and s-charts for circuit boards that are purchased from an outside supplier. A critical dimension is the distance between two holes on the board that are supposed to be 5 cm apart. Use the data in the Problems Data workbook. Find the control limits using the appropriate formulas. What conclusions do you reach concerning the state of the process? Is it under control? Why or why not? Fujiyama Electronics Sample Observations 1 4.92 4.26 4.94 4.29 2 4.65 5.54 5.00 5.42 3 5.77 5.26 4.76 4.79 4 6.25 4.88 5.66 4.44 5 5.27 5.41 6.02 4.91 6 5.22 5.38 5.08 4.65 7 5.47 4.68 4.56 4.70 8 5.71 4.54 4.17 4.87 9 5.24 5.58 4.72 5.41 10 4.42 5.18 4.79 4.73 11 5.14 4.26 4.71 5.48 12 4.92 5.78 5.50 5.05 13 5.79 3.83 4.30 4.78 14 4.92 4.80 4.75 5.59 15 5.68 5.74 4.65 5.20 16 5.43 4.81 5.27 4.96 17 4.79 6.04 4.47 5.18 18 5.03 4.66 5.25 4.46 19 4.30 5.47 4.27 4.34 20 6.07 4.97 5.51 5.02 21 5.11…arrow_forward
- The number of workmanship nonconformities (imperfections) observed in the final inspection of disk-drive assemblies has been tabulated as shown in the following table. Which one of the following is closest to the upper control limit for the 8 day using the appropriate control chart. Nonconformities on assemblies Day Total number of Number of Day Total number of Number of imperfections assemblies imperfections assemblies inspected inspected 1 10 6 26 3 16 7 4 14 2 17 8. 25 4 23 9 1 12 4 18 10 10 Select one: a. 0.45080 b. 0.55214 c. 0.50145 d. 0.46512 e. 0.41048 3. 4. 3.arrow_forwardpleaase solve accurately and with correct formulas thankssarrow_forwardA green belt is going to monitor the process by collecting more than 10 samples per group. Which of the following control charts would be most appropriate ? a. I-MR b. Xbar R c. X bar S d. np chart (Don't Hand writing in solution) .arrow_forward
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