The upper and lower control limits.

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Answer 1

Question

Chapter 6.S, Problem 11P

a)

Summary Introduction

To determine: The upper and lower control limits.

b)

Summary Introduction

To draw: The chart and plot the values.

c)

Summary Introduction

To identify: If the process is in control.

d)

Summary Introduction

To explain: The reason why the process is not in control.

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Twelve samples, each containing five parts, were taken from a process that produces steel rods. The length of each rod is the sample was determined. The results were tabulated and sample means and ranges were computed. Sample Sample Mean (in.) Range (in.) 1 10.001 0.011 2 10.003 0.014 3 9.995 0.007 4 10.007 0.022 5 9.997 0.013 6 9.999 0.012 7 10.001 0.008 8 10.006 0.014 9 9.994 0.005 10 10.002 0.010 11 10.002 0.013 12 10.005 0.009 Determine the upper and lower control limits and the overall means for -chart and R-chart. Chart the charts and plot the values of the sample means and ranges. 3. Does the data indicate a process that is in control? Why or why not?

Five samples of size 4 were taken from a process. A range chart was developed that had LCLR = 0 and UCLR = 2.50. Similarly, an average chart was developed with the average range from the five samples, with LCL = 15.0 and UCL = 24.0. The ranges for each of the five samples were 1.75, 2.42, 2.75, 2.04, and 2.80, respectively. The values of the sample average for each sample were 19.5, 22.3, 17.4, 20.1, and 18.9, respectively. What can you tell management from this analysis? The process variability is out of control, and we cannot make a statement about the process average. The process variability is out of control, but the process average is in control. The process variability and the process average are out of control. We cannot tell if the process variability or the process average is out of control. Need the answer in 10 minutes, if possible. Please

Twelve samples, each containing five parts, were taken from a process that produces steel rods at Emmanual Kodzi's factory. The length of each rod in the samples was determined. The results were tabulated and sample means and ranges were computed. The results were: Sample Sample Mean (in.) Range (in.) Sample Sample Mean (in.) Range (in.) 1 10.802 0.044 7 10.803 0.021 2 10.800 0.051 8 10.807 0.058 3 10.791 0.042 9 10.793 0.039 4 10.808 0.037 10 10.803 0.038 5 10.797 0.048 11 10.803 0.054 6 10.801 0.053 12 10.806 0.061 Part 2 For the given data, the x = enter your response here inches (round your response to four decimal places).

Answer 2

Question

Chapter 6.S, Problem 11P

a)

Summary Introduction

To determine: The upper and lower control limits.

b)

Summary Introduction

To draw: The chart and plot the values.

c)

Summary Introduction

To identify: If the process is in control.

d)

Summary Introduction

To explain: The reason why the process is not in control.

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Answer 3

Question

Chapter 6.S, Problem 11P

a)

Summary Introduction

To determine: The upper and lower control limits.

b)

Summary Introduction

To draw: The chart and plot the values.

c)

Summary Introduction

To identify: If the process is in control.

d)

Summary Introduction

To explain: The reason why the process is not in control.

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Answer 4

Question

Chapter 6.S, Problem 11P

a)

Summary Introduction

To determine: The upper and lower control limits.

b)

Summary Introduction

To draw: The chart and plot the values.

c)

Summary Introduction

To identify: If the process is in control.

d)

Summary Introduction

To explain: The reason why the process is not in control.

Expert Solution & Answer

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Answer 5

Chapter 6.S, Problem 11P

a)

Summary Introduction

To determine: The upper and lower control limits.

b)

Summary Introduction

To draw: The chart and plot the values.

c)

Summary Introduction

To identify: If the process is in control.

d)

Summary Introduction

To explain: The reason why the process is not in control.

Answer 6

Chapter 6.S, Problem 11P

a)

Summary Introduction

To determine: The upper and lower control limits.

Answer 7

Chapter 6.S, Problem 11P

a)

Summary Introduction

To determine: The upper and lower control limits.

Answer 8

b)

Summary Introduction

To draw: The chart and plot the values.

Answer 9

b)

Summary Introduction

To draw: The chart and plot the values.

Answer 10

c)

Summary Introduction

To identify: If the process is in control.

Answer 11

c)

Summary Introduction

To identify: If the process is in control.

Answer 12

d)

Summary Introduction

To explain: The reason why the process is not in control.

Answer 13

d)

Summary Introduction

To explain: The reason why the process is not in control.

Answer 14

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Answer 15

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Answer 16

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Answer 17

Ch. 6.S - Prob. 1DQ Ch. 6.S - Define in statistical control.Ch. 6.S - Prob. 3DQ Ch. 6.S - Prob. 4DQ Ch. 6.S - Prob. 5DQ Ch. 6.S - Prob. 6DQ Ch. 6.S - Prob. 7DQ Ch. 6.S - Prob. 8DQ Ch. 6.S - Prob. 9DQ Ch. 6.S - Prob. 10DQ

The upper and lower control limits.

Solution Summary: The author explains how to determine the upper and lower control limits.

Concept explainers

To determine: The upper and lower control limits.

To draw: The chart and plot the values.

To identify: If the process is in control.

To explain: The reason why the process is not in control.

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Chapter 6 Solutions