4. A production manager at any is monitoring the quality of the company's production process. There has been concern relative to the quality of the operation in accurately filling the 16 ounces of dishwashing liquid. The product is designed for a fill level of 16.00 ± 0.30. The company collected the following sample data on the production process: Observations Sample 1 2 3 4 5 6 7 8 9 10 1 16.41 15.95 15.90 16.10 15.80 15.40 16.33 15.50 16.15 15.80 2 16.10 16.10 16.00 16.21 16.25 15.49 16.21 15.90 16.21 16.43 3 15.85 16.10 16.004 15.5 16.34 15.70 15.99 16.10 16.05 16.50 4 15.76 15.81 15.90 15.95 16.41 15.92 16.00 16.03 16.00 15.97 a. Are the process mean and range in statistical control? b. Do you think this process is capable of meeting the design standard?

4. A production manager at any is monitoring the quality of the company's production process. There has been concern relative to the quality of the operation in accurately filling the 16 ounces of dishwashing liquid. The product is designed for a fill level of 16.00 ± 0.30. The company collected the following sample data on the production process: Observations Sample 1 2 3 4 5 6 7 8 9 10 1 16.41 15.95 15.90 16.10 15.80 15.40 16.33 15.50 16.15 15.80 2 16.10 16.10 16.00 16.21 16.25 15.49 16.21 15.90 16.21 16.43 3 15.85 16.10 16.004 15.5 16.34 15.70 15.99 16.10 16.05 16.50 4 15.76 15.81 15.90 15.95 16.41 15.92 16.00 16.03 16.00 15.97 a. Are the process mean and range in statistical control? b. Do you think this process is capable of meeting the design standard?

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...

See similar textbooks

Similar questions

The Farley Manufacturing Company prides itself on the quality of its products. The company is engaged in competition for a very important project. A key element is a part that ultimately goes into precision testing equipment. The specifications are 8.000 ± 3.000 millimeters. Management is concerned about the capability of the process to produce that part. The following data (shown below) were randomly collected during test runs of the process: Observation (Millimeters) Sample 1 2 3 4 5 6 7 8 1 9.100 8.900 8.800 9.200 8.100 6.900 9.300 9.100 2 7.600 8.000 9.000 10.100 7.900 9.000 8.000 8.800 3 8.200 9.100 8.200 8.700 9.000 7.000 8.800 10.800 4 8.200 8.300 7.900 7.500 8.900 7.800 10.100 7.700 5 10.000 8.100 8.900 9.000 9.300 9.000 8.700 10.000 Assume that the process is in statistical control. Is the process capable of producing the part at the three-sigma level? Explain.
The Farley Manufacturing Company prides itself on the quality of its products. The company is engaged in competition for a very important project. A key element is a part that ultimately goes into precision testing equipment. The specifications are 8.000plus or minus±3.0003.000 millimeters. Management is concerned about the capability of the process to produce that part. The accompanying data were randomly collected during test runs of the process. Observation (millimeters) Sample 1 2 3 4 5 6 7 81 9.600 7.200 9.300 8.100 9.800 8.700 8.600 9.3002 8.500 9.000 9.100 8.000 7.600 8.400 7.800 9.8003 7.500 8.500 8.600 7.900 7.700 9.000 7.100 7.4004 7.100 8.100 9.700 9.300 8.200 8.800 7.700 9.0005 9.500 9.100 9.300 7.000 8.300 7.300 7.400 9.800 a. The process capability index, Cpk, is equal to_______. (Enter your response rounded to three decimal places.
McDaniel Shipyards wants to develop control charts to assess the quality of its steel plate. They take ten sheets of 1" steel plate and compute the number of cosmetic flaws on each roll. Each sheet is 20' by 100'. Based on the following data, develop limits for the control chart, plot the control chart, and determine whether the process is in control. Sheet Number of flaws 1 1 2 1 3 2 4 0 5 1 6 5 7 0 8 2 9 0 10 2
Bottles for room spray are supposed to weigh exactly oz. Inspectors want to develop process control charts . They take six boxes of five bottles each and weigh them . They obtain the following data . The mean weights of each of the 6 samples are 15.2, 14.6, 16.5, 18.1, 13.2 , and 14.8 respectively . Likewise , the range values for the each of 6 samples are 1.8, 0.7, 0.5, 0.4, 0.2 , and 0.9 respectively . Find out Grand Mean (X double bar ), and mean range (R bar )
Aspen Plastics produces plastic bottles to customer order. The quality inspector randomly selects four bottles from the bottle machine and measures the outside diameter of the bottleneck, a critical quality dimension that determines whether the bottle cap will fit properly. The dimensions (inch) from the last six samples are: BOTTLE Sample 1 2 3 4 1 0.694 0.622 0.698 0.69 2 0.687 0.611 0.697 0.613 3 0.671 0.680 0.695 0.602 4 0.610 0.615 0.685 0.678 5 0.680 0.624 0.618 0.614 6 0.685 0.693 0.607 0.669 What would be the center line of a 3-sigma S chart? Answer:
One of New England Air's top competitive priorities is on-time arrivals. Quality VP Clair Bond decided to personally monitor New England Air's performance. Each week for the past 30 weeks, Bond checked a random sample of 100 flight arrivals for on-time performance. Sample (week) Late Flights Sample (week) Late Flights1 4 16 32 3 17 23 11 18 104 2 19 25 1 20 16 2 21 17 4 22 208 7…
One of New England Air's top competitive priorities is on-time arrivals. Quality VP Clair Bond decided to personally monitor New England Air's performance. Each week for the past 30 weeks, Bond checked a random sample of 100 flight arrivals for on-time performance. Sample (week) Late Flights Sample (week) Late Flights1 3 16 32 3 17 23 11 18 64 2 19 35 1 20 26 2 21 17 5 22 228 7 23 39 11 24 110 0 25 211 3 26 112 5 27 013 2 28 114 2 29 415 7 30 5 a) The overall fraction of late flights is [ 0.04 ] enter your response here (enter your response as a real number rounded to two decimal places.) Using a 95% confidence level, the upper and lower control limits are: Upper control limit (UCLp)= enter your response here [ ? ] (enter your response as a fraction between 0 and 1, rounded to four decimal places) Lower control limit (LCLp) =…
The production manager at Sunny Soda, Inc., is interested in tracking the quality of the company’s 12-ounce bottle filling line. The bottles must be filled within the tolerances set for this product because the dietary information on the label shows 12 ounces as the serving size. The design standard for the product calls for a fill level of 12.00 ± 0.10 ounces. The manager collected the following sample data (in fluid ounces per bottle) on the production process: Observation Sample 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 12.00 11.91 11.89 12.10 12.08 11.94 12.09 12.01 12.00 11.92 11.91 12.01 11.98 12.02 12.00 11.97 11.94 12.02 12.09 11.92 11.98 12.00 12.04 11.96 11.94 11.99 12.00 11.99 12.00 12.05 12.10 12.10 11.97 12.05 12.12 12.06 12.00 11.99 11.97 12.09 12.05 12.06 12.06 12.05 12.01 12.08 11.96 11.99 11.95 12.05 12.08 12.03 11.95 12.03 12.00 12.10 11.97 12.03 11.95 11.97 a. Are the process average and range in statistical control?b. Is the process capable…
In a fabric manufacturing factory, the quality control process using control charts from SPC. In an hour there are a total of 5 samples are taken each having 5 observations regarding the thickness of fabric in measured in millimeters In a particular hour, the sample means (X-bar) are noted to be: 172.11, 219.58, 208.24, 112.44, and 123.30 respectively. In the same sample, the corresponding ranges are: 13.17, 3.38, 15.34, 13.0 , and 13.02 respectively What are the lower and upper control limits for the X-bar chart? a . 157.21 , 177.05 b. 146.01, 157.87 c. 159.25, 175.02 d. 142.92, 160.66 e. 143.55, 165.47 f. None is correct
2. A process screens a certain type of a certain type of potash granule, resulting in a mean diameter of 0.03cm and a standard deviation of 0.003cm. The allowable variation in granule diameter is from 0.02 cm to 0.04 cm. a) Calculate the capability ratio Cp for the process. b) Is the process capable?
Bottles for room spray are supposed to weigh exactly 16 oz. Inspectors want to develop process control charts. They take six boxes of five bottles each and weigh them. They obtain the following data. The mean weights of each of the 6 samples are 15.43, 14.47, 18.07, 17.34 12.74and 15.58 respectively. Likewise , the range values for the each of 6 samples are 1.63.0.66 6, 0.47, 0.40, 0.20 , and 0.90 respectivelyFind out Grand Mean double bar), and mean range (R bar) aligned 16.53,0.71\\ 15.82,.0.65 aligned a. b. Oc 16.538, 0.86 e. 0.0
Jim’s Outfitters, Inc., makes custom fancy shirts for cowboys. The shirts could be flawed in various ways, including flaws in the weave or color of the fabric, loose buttons or decorations, wrong dimensions, and uneven stitches. Jim randomly examined 10 shirts, with the following results:Shirt Defects1 82 03 74 125 56 107 28 49 610 6a. Assuming that 10 observations are adequate for these purposes, determine the three-sigma control limits for defects per shirt.b. Suppose that the next shirt has 13 flaws. What can you say about the process now?