Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Consider the control chart below. R-chart I 2 3 45 6 789101112131415 Sample Q Is this process in statistical control? O No. There is at

image text in transcribedimage text in transcribedimage text in transcribedimage text in transcribed
image text in transcribedimage text in transcribedimage text in transcribedimage text in transcribed
Consider the control chart below. R-chart I 2 3 45 6 789101112131415 Sample Q Is this process in statistical control? O No. There is at least one point beyond the control limits. 0 Yes. There is no point beyond the control limits. (O) No. There is no point beyond the control limits. 0 Yes. There is at least one point beyond the control limits. A sample of 5 boxes was selected from a process each day for 8 days. The weight of each box (in ounces), along with the sample range and mean are shown below: Process Data Day Box 1 Box2 Box3 Box4 Box5 Range Mean 1 50 54 54 50 54 4 52.4 2 49 54 47 47 54 7 50.2 3 53 50 52 52 50 3 51.4 4 52 49 47 47 49 5 48.8 5 50 49 46 52 51 6 49.6 6 51 49 48 51 52 4 50.2 7 48 52 47 54 53 7 50.8 8 50 50 52 46 48 6 49.2 Determine the control limits for the a-chart accurate to 2 decimal places. Table of Control Chart Constants a ) Centreline = b) LCL = UCL = c) Can we conclude that the process mean is out of control? O No. There is no point beyond the control limits. O Yes. There is at least one point beyond the control limits. O No. There is at least one point beyond the control limits. O Yes. There is no point beyond the control limits.The sample mean and ranges for 20 samples, each of size n = 9, from a manufacturing process are provided below. Sample Range Mean Sample Range Mean 1 2.402 19.274 11 3.720 19.357 2 2.286 22.405 12 2.824 19.970 3 2.405 22.192 13 2.634 20.633 4 2.501 20.308 14 3.836 20.483 5 2.194 19.255 15 1.243 19.268 6 1.234 21.467 16 2.904 21.110 7 2.409 21.993 17 2.287 22.566 8 3.607 22.878 18 0.633 19.038 9 2.308 19.665 19 2.512 22.503 10 2.025 20.318 20 1.508 19.484 Download CSV Table of Control Chart Constants Report answers accurate to 3 decimal places. Do not round intermediate results. a) The lower and upper control limits for the R-chart are: m@ M3 Does it appear that the process range is out of control? 0 Yes. There is no point outside the control limits. 0 No. There is at least one point outside the control limits. 0 No. There is no point outside the control limits. 0 Yes. There is at least one point outside the control limits. b) The lower and upper control limits for the :E-chart are: mi: wCi Does it appear that the process mean is out of control? 0 Yes. There is at least one point outside the control limits. 0 No. There is no point outside the control limits. 0 No. There is at least one point outside the control limits. 0 Yes. There is no point outside the control limits. Random samples of various size were selected from a process every shift for 13 shifts. The number of defectives in each sample is shown below: Sample 1234567 Sample Size 37 39 41 53 39 55 51 Number Defective 6 4 6 8 5 2 8 Sample Sample Size Number Defective Download CSV a} Determine the centerline and the control limits for the p-chart accurate to at least 4 decimal places. Do not r'ound intermediate results. b) Is the process within statistical control? 0 Yes. There is no point beyond the control limits. 0 Yes. There is at least one point beyond the control limits. 0 No. There is at least one point beyond the control limits. 0 No. There is no point beyond the control limits

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Discrete Mathematics With Applications

Authors: Susanna S Epp, Robert Gatewood,

4th Edition

1133168663, 9781133168669

More Books

Students also viewed these Mathematics questions

Question

What is quality of work life ?

Answered: 1 week ago

Question

What is meant by Career Planning and development ?

Answered: 1 week ago

Question

What are Fringe Benefits ? List out some.

Answered: 1 week ago

Question

5. How can I help others in the network achieve their goals?

Answered: 1 week ago