Question: What is the upper control limit for the R-chart? A) 6.01 B)7.31 C)0. D)6.48 Is the R- Chart in control or out of control? A)

What is the upper control limit for the R-chart?

What is the upper control limit for the R-chart?
A) 6.01 B)7.31 C)0. D)6.48
Is the R- Chart in control or out of control? A) out of control B)in control C)unknown
What is the upper control limit for the X-bar chart? A) 71.85 B)73.49 C)73.92 D)74.76
What is the lower control limit for the X-chart chart? A)71.85 B) 68.94 C)70.21 D)69.78
Is the X-bar chart in control or out of control? A) out of control B)in control C)unknown

What is the n value we should use to find the control chart factors from the following table: Size of Sample (n) Factor for LCL for R-Chart (D) Factor for UCL for R-Chart (D) 2 Factor for UCL and LCL for X-Chart (A) 1.880 1.023 0.729 0 3.267 3 0 2.575 4 0 2.282 5 0.577 0 2.115 6 0.483 0 2.004 7 0.419 0.076 1.924 8 0.373 0.136 1.864 9 0.337 0.184 1.816 10 0.308 0.223 1.777 Source: Reprinted with permission from ASTM Manual on Quality Control of Materials, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. n=4 OOOO n=6 n=3 n=5 What is the n value we should use to find the control chart factors from the following table: Size of Sample (n) Factor for LCL for R-Chart (D) Factor for UCL for R-Chart (D) 2 Factor for UCL and LCL for X-Chart (A) 1.880 1.023 0.729 0 3.267 3 0 2.575 4 0 2.282 5 0.577 0 2.115 6 0.483 0 2.004 7 0.419 0.076 1.924 8 0.373 0.136 1.864 9 0.337 0.184 1.816 10 0.308 0.223 1.777 Source: Reprinted with permission from ASTM Manual on Quality Control of Materials, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. n=4 OOOO n=6 n=3 n=5

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