Reference no: EM131168156
A type of assembly is produced by gluing 5 identical wafers together in a sandwich-like arrangement. The critical dimension of this assembly is its width, the sum of the widths of the 5 wafers. The specifications for the assembly width are from 4.95 inches to 5.05 inches, with a target of 5.00 inches. The manufacturer wants at least 99.5% of the assemblies to meet specifications. Based on a lot of evidence, the individual wafer widths are normally distributed with mean 1 inch and some standard deviation σ.
a. One engineer, Bob Smith, argues that the company should try to achieve a value of σ (through appropriate changes in the process) such that 99.5% of all individual wafer widths are between 0.99 inch and 1.01 inches. What value of σ is necessary to achieve this?
b. A second engineer, Ed Jones, argues that Smith is solving the wrong problem. Instead, he says, the company should try to achieve a value of σ such that the sum of 5 normally distributed random values has only a 0.5% chance of falling outside the interval from 4.95 inches to 5.05 inches. What value of σ is necessary to achieve this?
c. Which of the engineers is solving the "correct" problem? If the company follows the advice of the wrong engineer, will it err on the high side (too many assemblies out of specifications) or the low side? Is there any disadvantage to erring on the low side?
The importance of strategic planning for acquisitions
: Topics to consider might include the following: The importance of strategic planning for acquisitions. Deciding to acquire a company or compete with it
|
Describe the diagnosis and staging of cancer
: Describe at least three complications of cancer, the side effects of treatment, and methods to lessen physical and psychological effects.
|
Explain the first part of the statement
: "Free trade is always desirable, but is seldom with us." Fully explain the first part of the statement, and discuss why the second part is correct. (2200 words)
|
Financial crises in the world
: Discuss what is meant by financial crisis and some of the known financial crises in the world?
|
What value of s is necessary to achieve this
: Which of the engineers is solving the "correct" problem? If the company follows the advice of the wrong engineer, will it err on the high side (too many assemblies out of specifications) or the low side? Is there any disadvantage to erring on the ..
|
Discuss a moral dilemma the character is facing
: How does this quote "Am I sorry? --- discuss a moral dilemma the character is facing in the book In Cold Blood?
|
How did they come to the same conclusions regarding morality
: Despite the vast differences between Greeks and Semitics, how did they come to the same conclusions regarding morality? What has been Western religion's role over-time regarding Eastern and Western traditions?
|
Develop whatever leadership potential
: "A strategy of embracing the past will probably become increasingly ineffective over the next few decades. Better for most of us to start learning now how to cope with change, to develop whatever leadership potential we have, and to help our organ..
|
Updating of a marketing plan to include social media
: What do you see as the key differences between using social media and traditional media for corporate marketing? What kinds of technologies might be useful in aiding the updating of a marketing plan to include social media and web applications
|