A process that is assumed to be in control with limits of 90 ± 2 had sample averages for the x-bar chart of the following: 87.1, 87, 87.2, 89, 90, 88.5, 89.5, and 88. Which of the following statement below are correct? Select one: a. None is correct b. Process mean is in-control c. Process mean is out-of-control d. Not enough information to determine

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
icon
Related questions
Question
FACTORS FOR R CHARTS
Number of
Factor for
Observations
in Subgroup,
x Chart,
A2
Lower
Control Limit,
Upper
Control Limit,
D3
Da
1.88
3.27
1.02
2.57
0.73
0.58
2.28
4
2.11
5
0.48
2.00
0.42
0.08
1.92
0.37
0.14
1.86
8
0.34
0.18
1.82
0.31
0.22
1.78
10
0.29
0.26
1.74
11
0.27
0.28
1.72
12
0.31
1.69
0.25
13
0.24
0.33
1.67
14
0.22
0.35
1.65
15
0.36
1.64
0.21
16
0.38
1.62
17
0.20
0.39
1.61
18
0.19
0.40
1.60
19
0.19
0.41
1.59
20
0.18
23
67
Transcribed Image Text:FACTORS FOR R CHARTS Number of Factor for Observations in Subgroup, x Chart, A2 Lower Control Limit, Upper Control Limit, D3 Da 1.88 3.27 1.02 2.57 0.73 0.58 2.28 4 2.11 5 0.48 2.00 0.42 0.08 1.92 0.37 0.14 1.86 8 0.34 0.18 1.82 0.31 0.22 1.78 10 0.29 0.26 1.74 11 0.27 0.28 1.72 12 0.31 1.69 0.25 13 0.24 0.33 1.67 14 0.22 0.35 1.65 15 0.36 1.64 0.21 16 0.38 1.62 17 0.20 0.39 1.61 18 0.19 0.40 1.60 19 0.19 0.41 1.59 20 0.18 23 67
A process that is assumed to be in control with limits of 90 + 2 had sample averages for the x-bar chart of the
following: 87.1, 87, 87.2, 89, 90, 88.5, 89.5, and 88. Which of the following statement below are correct?
Select one:
a. None is correct
O b. Process mean is in-control
c. Process mean is out-of-control
O d. Not enough information to determine
Transcribed Image Text:A process that is assumed to be in control with limits of 90 + 2 had sample averages for the x-bar chart of the following: 87.1, 87, 87.2, 89, 90, 88.5, 89.5, and 88. Which of the following statement below are correct? Select one: a. None is correct O b. Process mean is in-control c. Process mean is out-of-control O d. Not enough information to determine
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Quality Process Control
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Practical Management Science
Practical Management Science
Operations Management
ISBN:
9781337406659
Author:
WINSTON, Wayne L.
Publisher:
Cengage,
Operations Management
Operations Management
Operations Management
ISBN:
9781259667473
Author:
William J Stevenson
Publisher:
McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi…
Operations and Supply Chain Management (Mcgraw-hi…
Operations Management
ISBN:
9781259666100
Author:
F. Robert Jacobs, Richard B Chase
Publisher:
McGraw-Hill Education
Business in Action
Business in Action
Operations Management
ISBN:
9780135198100
Author:
BOVEE
Publisher:
PEARSON CO
Purchasing and Supply Chain Management
Purchasing and Supply Chain Management
Operations Management
ISBN:
9781285869681
Author:
Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:
Cengage Learning
Production and Operations Analysis, Seventh Editi…
Production and Operations Analysis, Seventh Editi…
Operations Management
ISBN:
9781478623069
Author:
Steven Nahmias, Tava Lennon Olsen
Publisher:
Waveland Press, Inc.