Question
1-7 please
Using Statistical Process Control Quality Charts were first developed by (a) Dr. Walter Schewhart in 1931 (b) Dr. Deming in 1931 (c) Dr. Juran in 1941 (d) None of the above In preparing a veritable we take randomly taken samples that should (a) reduces of sampling all population (b) inferences (c) the population (d) of the above In SPC, control chart for a process is used for the primary purpose of (a) checking specification and clearances (b) comparing different operation (c) determining the stability of the process (d) rejecting bad product In a new process, a graphical display of the first 30 process data in the order they occur is called: (a) a run chart (b) the area where cause vertical occurs (c) the Diagram (d) A histogram In SPC analysis, variation that is only attributable to the process system is called: (a) special cause variation (b) common cause vertical (c) both a and b (d) of the above What do you understand when a part's measurement in manufacturing process is in statistical control: (a) all data of process samples grand mean is on target and PCR is 0.75 to 0.6 (b) all product will shipping requirements (c) all parts measurements will always meet manufacturing specification limits (d) none of the above A control chart is a graphic representation: (a) that shows when parts are bring produce within specification limits (b) for a characteristic of a process showing plotted values of some statics gathered for that characteristic (c) indicating how nonconforming parts are being manufactured (d) of all measurements that should follow distribution of the process
Explanation / Answer
1) Dr. Walter A. Shewhart
2) represents the population
3) determining the stability of the process
4) a run chart
5) common cause variation
6) all parts measurements will always meet manufacturing specification limits
7) for a characteristic of a process showing plotted values of some statistics gathered for that characteristic.
