Control charts are to be constructed for samples of size n = 5, and I and Fare computed for each of 20 preliminary samples as follows: 20 = 1390 20 Eri = 166.3 (a) Assuming the process is in control, estimate the process mean and standard deviation. Round your answers to three decimal places (e.g. 98.765). (b) Calculate the trial control limits for the X chart. Round your answers to three decimal places (e.g. 98.765). UCL = i LCL = Calculate the trial control limits for the R chart. Round your answers to three decimal places (e.g. 98.765). UCL = i LCL = i

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter29: Tolerance, Clearance, And Interference
Section: Chapter Questions
Problem 16A: Spacers are manufactured to the mean dimension and tolerance shown in Figure 29-12. An inspector...
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Control charts are to be constructed for samples of sizen = 5, and and Fare computed for each of 20 preliminary samples as
follows:
20
E = 1390
20
166.3
(a) Assuming the process is in control, estimate the process mean and standard deviation.
Round your answers to three decimal places (e.g. 98.765).
i
(b) Calculate the trial control limits for the X chart.
Round your answers to three decimal places (e.g. 98.765).
UCL =
LCL = i
Calculate the trial control limits for the R chart.
Round your answers to three decimal places (e.g. 98.765).
UCL =
LCL =
i
Statistical Tables and Charts
Transcribed Image Text:Control charts are to be constructed for samples of sizen = 5, and and Fare computed for each of 20 preliminary samples as follows: 20 E = 1390 20 166.3 (a) Assuming the process is in control, estimate the process mean and standard deviation. Round your answers to three decimal places (e.g. 98.765). i (b) Calculate the trial control limits for the X chart. Round your answers to three decimal places (e.g. 98.765). UCL = LCL = i Calculate the trial control limits for the R chart. Round your answers to three decimal places (e.g. 98.765). UCL = LCL = i Statistical Tables and Charts
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