Management at Deluxe Diner is in process of establishing a quality control system for the time it takes to initially make contact with a table of patrons. A sample of size 3 istaken on each of the five different days. The following data table presents the results (all times listed are in seconds).Time 1Time 2Time 3ServiceEncounterday 1day 2day 3day 4day 5200120836811015085931509017510513014575 What is the centerline (CL) for the x-bar chart? Pick the closest answer.100110120130140150OOO

An X-chart is a model of control chart which considering the process controllability calculation…

Answered: What is the centerline (CL) for the…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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Management at Deluxe Diner is in process of establishing a quality control system for the time it takes to initially make contact with a table of patrons. A sample of size 3 is taken on each of the five different days. The following data table presents the results (all times listed are in seconds). Time 1 Time 2 Time 3 Service Encounter day 1 day 2 day 3 day 4 day 5 200 120 83 68 110 150 85 93 150 90 175 105 130 145 75
Management at Deluxe Diner is in process of establishing a quality control system for the time it takes to initially make contact with a table of patrons. A sample of size 3 is taken on each of the five different days. The following data table presents the results (all times listed are in seconds). Use this info for the next 2 questions Service Encounter Time 1 Time 2 Time 3 day 1 200 150 175 day 2 120 85 105 day 3 83 93 130 day 4 68 150 145 day 5 110 90 75 What is the centerline (CL) for the x-bar chart? Group of answer choices a Less than or equal to 100 b Greater than 100 but less than or equal to 105 c Greater than 105 but less than or equal to 110 d Greater than 110 but less than or equal to 115 e Greater than 115 but less than or equal to 120 f Greater than 120
Quality Engineering question What is Statistical Process Control? With what purpose is it used for? Please explain with an example. Please answer in your own words.
In response to intensive foreign competition, the management of Florex Company has attempted over the past year to improve the quality of its products. A statistical process control system has been installed and other steps have been taken to decrease the amount of warranty and other field costs, which have been trending upward over the past several years. Costs relating to quality and quality control over the last two years are given below: Costs (in thousands) Last Year This Year Inspection $ 720 $ 909 Quality engineering $ 450 $ 765 Depreciation of test equipment $ 675 $ 270 Rework labor $ 1,080 $ 1,530 Statistical process control $ 0 $ 225 Cost of field servicing $ 1,350 $ 1,260 Supplies used in testing $ 45 $ 81 Systems development $ 720 $ 900 Warranty repairs $ 3,780 $ 1,620 Net cost of scrap $ 630 $ 1,170 Product testing $ 900 $ 1,800 Product recalls $ 3,150 $ 900 Disposal of defective products $ 810 $ 1,080 Sales have been flat over the…
Problem 10-21 (Algo) A process that produces computer chips has a mean of .04 defective chips and a standard deviation of .003 chips. The allowable variation is from .035 to .045 defective. a.Compute the capability index (Cp) for the process. (Round your intermediate calculations to 3 decimal places and final answer to 2 decimal places.) Capability index b. Is the process capable? Hint. Use 1.33 as the standard capabality index. O No Ⓒ Yes
Inter-State Moving and Storage Company wishes to establish a control chart to monitor the proportion of residential moves that result in written complaints due to late delivery, lost items, or damaged items. A sample of 40 moves is selected for each of the last 12 months. The number of written complaints in each sample is 9, 7, 4, 9, 1, 9, 11, 5, 5, 8, 7, and 15. Number Defective Percent defective 9 18 7 14 4 8 9 18 1 2 9 18 11 22 5 10 5 10 8 16 7 14 15 30 a. Insert the mean proportion defective, UCL, and LCL. (Leave no cells blank - be certain to enter "0" wherever required. Round your intermediate calculations and final answers to 2 decimal places.) Mean proportion defective UCL LCL c. Does it appear that the number of complaints is out of control for any of the months?multiple choice Yes No
Question 1: A company making tires for bikes is concerned about the exact width of its cyclocross tires. The company has a lower specification limit of 22.8 mm and an upper specification limit of 23.2 mm. The standard deviation is 0.15 mm and the mean is 23 mm. What is the process capability index (Cpk) for the process? Question 2: Consider again that the company making tires for bikes is concerned about the exact width of its cyclocross tires. The company has a lower specification limit of 22.8 mm and an upper specification limit of 23.2 mm. The standard deviation is 0.15 mm and the mean is 23 mm. What is the probability that a tire will either be too wide or too narrow? Question 3: You are working in a small, student-run company that sends out merchandise with university branding to alumni around the world. Every day, you take a sample of 50 shipments that are ready to be shipped to the alumni and inspect them for correctness. Across all days, the average percentage of incorrect…
Problem 10-21 (Algo) A process that produces computer chips has a mean of .04 defective chips and a standard deviation of .003 chips. The allowable variation is from .032 to .048 defective. a.Compute the capability Index (C) for the process. (Round your Intermediate calculations to 3 decimal places and final answer to 2 decimal places.) Capability index b. Is the process capable? Hint. Use 1.33 as the standard capabality Index. O Yes O No
R-charts controls the dispersion of the process Group of answer choices True False Using 3 period moving average forecasting method, find forecast for week 6 (round your answer up). Weeks Actual Number of Patients Forecasted Number of Patients 1 652 2 890 3 728 4 1,006 5 926 6 878 ? Group of answer choices 926 patients 840 patients 937 patients 847 patients 887 patients
Describe a situation where it would be useful to use data validation in a table.
Problem 10-7 (Algo) The postmaster of a small western town receives a certain number of complaints each day about mail delivery. DAY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Number of complaints 4 12 16 8 9 6 5 13 14 7 6 4 2 10 Click here for the Excel Data File a. Determine three-sigma control limits using the above data. (Round your intermediate calculations to 4 decimal places and final answers to 3 decimal places. Leave no cells blank - be certain to enter "0" wherever required. Round up any negative control limit value to zero.) b. Is the process in control? multiple choice Yes No
4) Because a telephone customer service center has experienced several problems, it has begun to analyze the data from customer complaints. The first step was to construct the following table. Use this data to build a Pareto chart to help identify the "vital few" problems. Process Failure Total Failures Person not available Incorrect information given Phone line busy Long delay Phone tree confusing People unfriendly 12 39 20 17 DFocus e

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What is the centerline (CL) for the x-bar chart? Pick the closest answer. 100 110 120 130 140 150 1000000