Upper and lower control limits, Operation Management

Assignment Help:

Clerks at Lotsa Data Systems key in thousands of insurance records each day for a variety of client firms.  The process is in control but CEO Donna Lotsa wants to be sure that at least 99.73% of the random variation in the data entry process is included in its control charts' control limits. Samples of the work of 20 clerks are shown in the table below. Lotsa examines 100 records entered by each clerk and counts the number of errors. She also computes the fraction defective in each sample.

Sample Number

Number of Errors

Sample Number

Number of Errors

1

6

11

6

2

5

12

1

3

0

13

8

4

1

14

7

5

4

15

5

6

2

16

4

7

5

17

11

8

3

18

3

9

3

19

0

10

2

20

4

 

 

TOTAL

80

a. What is the appropriate number of standard deviations to include in calculating the upper and lower control limits?

b. What are the upper and lower control limits?

c. Illustrate/state whether the process is in statistical control or not.


Related Discussions:- Upper and lower control limits

Explain cost management processes, Cost management processes are involved i...

Cost management processes are involved in estimating, budgeting and controlling costs so that the project can be completed within the approved budget.

Explain the company''s competitive advantage, SWOT Analysis (3 to 4 pages) ...

SWOT Analysis (3 to 4 pages) Internal Analysis (Strengths and Weaknesses). For example: Describe the company's competitive advantage by discussing its efficiency, quality, motivati

Explain whole foods market has a mission, 1. What evidence do you find in t...

1. What evidence do you find in this case, either explicitly or implicitly, that indicates that Whole Foods Market has a mission, core values, or is practicing decision-making that

Explain what are the issues of management, What are the issues of managemen...

What are the issues of management does Whole Foods Market in 2010 needs to address? Analyze and evaluate the issues identified

Explain tomorrow''s business environment, Write a job description for a pos...

Write a job description for a position in tomorrow's business environment

Attract as well buyers to complete the on-line buying proce, It appears tha...

It appears that the potential to lose web site customers is a high rate (75%), so to provide research into troubleshooting to determine how to get customers to purchase product is

Innovation and learning perspective - performance measures, Innovation and ...

Innovation and Learning Perspective - Performance Measures In this perspective, the company emphasises the design and application of business management initiatives that foste

Explain the e-activity, "Big Box" Please respond to the following: •From th...

"Big Box" Please respond to the following: •From the video, determine if it is the responsibility of an organization to pay its workers a "living wage." Explain your rationale. •Fr

Explain the common grounds for discharge and the procedural, Describe the c...

Describe the common grounds for discharge and the procedural requirements that are outlined in many collective bargaining agreements. State why the following are important when the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd