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(a) Estimate control limits (CL), upper control limits (UCL) and lower control limits (LCL). (b) Establish a control chart. (c) Is the process under control?

(a) Estimate control limits (CL), upper control limits (UCL) and lower control limits (LCL). (b) Establish a control chart. (c) Is the process under control?

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter2: Exponential, Logarithmic, And Trigonometric Functions
Section2.CR: Chapter 2 Review
Problem 111CR: Respiratory Rate Researchers have found that the 95 th percentile the value at which 95% of the data...
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pls answer b with some explanation tq 

Q8. A process that produces titanium forgings for automobile turbocharger wheels is to be controlled through use of a fraction nonconforming chart. Initially, on sample of size 150 is taken each day for twenty days, and the results shown in the Table-1 are observed. (a) Estimate control limits (CL), upper control limits (UCL) and lower control limits (LCL). (b) Establish a control chart. (c) Is the process under control? Day 1 2 3 4 5 6 7 8 9 10 Nonconforming Units 3 2 4 2 5 2 1 2 0 5 Day 11 12 13 14 15 16 17 18 19 20 Nonconforming Units 2 4 1 3 6 0 1 2 3 2
Transcribed Image Text:Q8. A process that produces titanium forgings for automobile turbocharger wheels is to be controlled through use of a fraction nonconforming chart. Initially, on sample of size 150 is taken each day for twenty days, and the results shown in the Table-1 are observed. (a) Estimate control limits (CL), upper control limits (UCL) and lower control limits (LCL). (b) Establish a control chart. (c) Is the process under control? Day 1 2 3 4 5 6 7 8 9 10 Nonconforming Units 3 2 4 2 5 2 1 2 0 5 Day 11 12 13 14 15 16 17 18 19 20 Nonconforming Units 2 4 1 3 6 0 1 2 3 2
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