Six Sigma - construct X Bar Charts
About the Lecture
The lecture Six Sigma - construct X Bar Charts by OTIFAS PVT LTD is from the course Six Sigma - Improve and Control Phase. It contains the following chapters:
- Charts
- Control Charts Analysis
Included Quiz Questions
A document describing the system for controlling processes is called ...
- Control plan.
- Visual control.
- Standard operating procedures.
- Graph.
Controlling a process is nothing but controlling ...
- Variation.
- Product.
- Operator.
A fruit jelly manufacturer want to use control chart for his packaging process, ideal weight should be 500 ±10 gm. As a six sigma green belt which of the following type of control chart would you suggest him?
- Xbar- R chart
- p-chart
- c-chart
- np-chart
In a control chart mean of the sample goes out side of control limits. What should we conclude about the process?
- Out of control and cause should be established.
- In control but not capable.
- Within the established control limit only natural causes of variation.
- Monitored closely to see if next sample mean falls outside the control limit.
The purpose of a X bar chart is to determine whether there has been ...
- change in central tendency of the process output.
- gain or loss in uniformity.
- change in % defective in a sample.
- change in the No of defect in a sample.
The mean of a sample is in the middle of the control limit, but some individual part measure too low & other part measure too high. Being a 6 Sigma green belt what should be your analysis?
- Process is in control, but not capable of producing within the established control limit.
- Process is out of control, cause is to be established.
- Process is within the established control limits with only natural cause of variation.
- Process is outside the established control limits with only natural cause of variation.
The usual purpose of a R-chart is to signal whether there has been a ...
- gain or loss in dispersion.
- change in % defective in a sample.
- change in central tendency of the process output.
- change in the No of defect in a sample.
An automotive component manufacturer want to control the variation in a Pin machining process. Diameter of the pin is 6 ±0.1mm. He collected 20 subgroups (comprising of 10 pieces each). As a six sigma practitioner which of the following control chart would you suggest him?
- Xbar-S chart
- Xbar-R chart
- p-chart
- c /u chart
Whenever any data point falls outside the control limit, it indicates ...
- a special cause variation and need to be investigated.
- a process is in control and need not to do anything.
- nothing, to worry it happens.
- common cause exists and we can't do much about this.
A courier service keeps tracks of No of late deliveries per day. Which type of control chart would you recommend for their team?
- U-chart
- P- chart
- C-chart
- X bar-R chart
Which type of control charts is used when we are interested in non conforming (Defective) units rather than No of defects ?
- p or np chart
- c-chart
- u-chart
A mobile phone manufacturer produces 1000 mobile phones daily. A random sample of 100 mobiles are inspected each day. Non conforming (defectives) mobiles were found as 1, 0, 2, 3, 0.... . If the manager needs to construct a control chart which chart will you suggest?
- np or p chart
- c-chart
- xbar- R chart
- u-chart
A daily news paper receive several complaints per day about typographical errors over a week. The publisher has received calls from readers reporting the following No of errors 3,5,7,8,4,3,2. Based on these data what type of control chart should the publisher use?
- C-chart
- P- chart
- Xbar- R chart
- R-chart
Both c-chart & u-chart are applicable where we focus on No of non conformities (defect) rather than a defective product. If the sample is of varying nature which of control chart would you suggest?
- u-chart
- c-chart
- c- or u-chart
- Neither of them is correct
Which type of control chart is applicable, where we focus missing rivet (a defect) in identical aircrafts?
- c-chart
- u-chart
- p-chart
- np-chart
Control charts for attribute data includes ...
- 'P' chart
- 'np' Chart
- c- or u-chart
- No answer is correct.
Np-chart is similar to p-charts but with a difference that is ...
- sample size is constant in np-charts.
- sample size is varying in np-charts.
- sample Size doubled in np-charts.
- sample Size is halved in np-charts..
3-pin electric plug has earthing pin long so that it is inserted before other two and removed in the last while plugging out. This safety feature is provided as a ...
- Poka -yoke.
- Technology.
- Brainstorming result.
- Cause & Effect diagram.
Author of lecture Six Sigma - construct X Bar Charts
OTIFAS PVT LTD
Customer reviews
5,0 of 5 stars
| 5 Stars |
|
5 |
| 4 Stars |
|
0 |
| 3 Stars |
|
0 |
| 2 Stars |
|
0 |
| 1 Star |
|
0 |
