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20 questions. mutiple hoice/true false Question 1 (1 point) Process capability calculations make little sense if the process: Question 1 options: -data were taken over a period of time -is not in statistical control -variations are due to special causes -has control but is not capable Save Question 2 (1 point) In a variable sample size situation--such as when the number of units produced varies--if the sample size in a p-chart increases from 100 to 120, the upper and lower control limits will: Question 2 options: -move farther apart -move closer together -remain the same distance apart -both shift upward Save Question 3 (1 point) Twenty samples of size 6 were collected for a variable measurement. Determine the upper control limit (UCL) and lower control limit (LCL) for an R-chart if the sum of the sample ranges equals 88.0. Question 3 options: UCL = 8.8176, LCL = 0.0000 UCL = 9.3016, LCL = 0.3344 UCL = 13.2000, LCL = 0.0000 UCL = 29.3921, LCL = 0.0000 Save Question 4 (1 point) A(n) _____ is a performance characteristic that is either present or absent in the product or service under consideration. Question 4 options: -variable -control limit -attribute -performance range Save Question 5 (1 point) Control limits relate to _____, while specification limits relate to individual measurements. Question 5 options: -values within the upper and lower control limits -total values in the range -median values -averages of samples Save Question 6 (1 point) An alternative to using the R-chart is the: Question 6 options: np-chart s-chart c-chart p-chart Save Question 7 (1 point) The sample size for an x-chart: Question 7 options: -should be greater than or equal to 30 -is larger than that for an Xbar-chart -is equal to one -depends on the number of measurements taken Save Question 8 (1 point) Which of the following is NOT an indication of an out-of-control process? Question 8 options: -Five consecutive points fall on one side of the center line -Four of five consecutive points fall within the outer two-thirds region between the center line and one of the control limits -Two of three consecutive points fall in the outer one-third region between the center line and one of the control limits -A single point falls above the upper control limit Save Question 9 (1 point) A precision parts manufacturer produces bolts for use in military aircraft. The specifications for bolt length are 37.50 0.25 cm. The company has established an Xbar-chart and an R-chart using samples of size five. The centerlines for the Xbar-chart and R-chart are set at 37.65 cm and 1.03 cm, respectively. What is the value of Cpk for this process? Question 9 options: 0.08 0.28 0.75 0.03 Save Question 10 (1 point) Short repeated patterns in a control chart, with alternating high peaks and low valleys, are known as: Question 10 options: -trends -cycles -spikes -reciprocals Save Question 11 (1 point) Which of the following pairs of charts are used together? Question 11 options: Xbar-chart and p-chart R-chart and p-chart R-chart and s-chart Xbar-chart and R-chart Save Question 12 (1 point) In pre-control, which zone covers the nominal dimension? Question 12 options: -Gray zone -Yellow zone -Red zone -Green zone Save Question 13 (1 point) Statistical process control relies on _____. Question 13 options: -capability models -variance analyses -control charts -conformance reports Save Question 14 (1 point) Which of the following charts is used to monitor the total number of defects per unit when a constant subgroup size is employed? Question 14 options: s-chart c-chart p-chart u-chart Save Question 15 (1 point) Collecting _____ data is usually easier than collecting _____ data because the assessment can usually be done more quickly by a simple inspection or count. Question 15 options: -attribute; variable -concrete; continuous -random; discrete -simple; continuous Save -------------------------------------------------------------------------------- Question 16 (1 point) When using a control chart -- one rule of thumb is to have a minimum of 25 data points--preferable 40 or more. Question 16 options: True False Save Question 17 (1 point) When the R-chart is not in control (has a signal), you should not investigate signals found in the related Xbar chart. Question 17 options: True False Save Question 18 (1 point) Before control charts can be used to identify the presence of special causes on line, the process must be brought into a state of statistical control; that is, the data used to establish the charts and define the control limits must be subject only to a constant system of common causes. Question 18 options: True False Save Question 19 (1 point) A scatter diagram can help identify possible relationship patterns and the dispersion around those patterns Question 19 options: True False Save Question 20 (1 point) A flow chart can help document the product stream (rational ample) associated with the data plotted in a control chart. Question 20 options: True False Save
The Ajax Corporation would like to know the average age of its employees. The average age of a sample of 100 employees is 28 years with a standard deviation of 6.5 years.
an airline ticket counter has one line feeding into 2 ticket agents. the airline is considering adding a third agent.
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Analyze this case in your mind and then state the legal issues to be considered.
Formulate a maximum-flow problem which could be used to conclude whether all three projects can be completed on time. Draw the network also Write down the LP.
the cause-and-effect diagram is important in determining causes and effects of a problem. the cause-and-effect diagram
Public relations activities and good citizenship are examples of which responsibilities of a business organization?
Sales of vegetable dehydrators at Bud Banis' discount department store in St. Louis over the past year are shown below. Management prepared a forecast using a combination of exponential smoothing and its collective judgment for the upcoming four m..
What is the recommended production rate if a level strategy is adopted with no backorder or stockouts? What is the ending inventory for month 4 under this plan?
Modern Furniture Stores sells modern coffee tables. The expected demand for next 12 months is 500 coffee tables. Tables are handmade in Seattle.
You will require including information such as cost, compatibility with current systems also work flow processes, functionality, ease of use also end user support.
In January 2012, Joan Taylor, the administrator of the Life-Time Insurance Company HMO in Buffalo, New York, was pleased with the Austin, Texas, location that was selected for a new ambulatory health center. (The process used to select this site is d..
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