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Statistics Homework Solutions 229

# Statistics Homework Solutions 229 - (d True This is the...

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SECTION 10.2 229 Chapter 10 Section 10.1 1. (a) Continuous (b) Count (c) Binary (d) Continuous 3. (a) is in control (b) has high capability 5. (a) False. Being in a state of statistical control means only that no special causes are operating. It is still possible for the process to be calibrated incorrectly, or for the variation due to common causes to be so great that much of the output fails to conform to specifications. (b) False. Being out of control means that some special causes are operating. It is still possible for much of the output to meet specifications. (c) True. This is the definition of statistical control.
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Unformatted text preview: (d) True. This is the definition of statistical control. Section 10.2 1. (a) The sample size is n 4. The upper and lower limits for the R-chart are D 3 R and D 4 R , respectively. From the control chart table, D 3 0 and D 4 2 282. R 143 7 30 4 79. Therefore LCL = 0, and UCL = 10.931. (b) The sample size is n 4. The upper and lower limits for the S-chart are B 3 s and B 4 s , respectively. From the control chart table, B 3 0 and B 4 2 266. s 62 5 30 2 08333. Therefore LCL = 0 and UCL = 4.721....
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