Normal distribution of frequency in the histogram, Operation Management

Normal Distribution of Frequency in the Histogram

The frequency distribution in the histogram was obtained from 200 measurements segregated into seven classes, each class having a 'width' of 5 mg. If a very much larger number of measurements were made and classified into a much larger number of 'narrower' classes, a smoother profile, approximating to this figure might be expected. This symmetrical, bell-shaped distribution is known as the normal distribution, and the outputs of many business processes conform to it. This is useful because the properties of the normal distribution are well-defined, allowing predictions to be made of the proportion of the output population which will lie within a specified measurement range. It should be noted that any particular normal distribution is completely specified by its µ and σ values. The setting of the process in relation to the relevant product design tolerance band is indicated by the mean, µ. The dispersion of the output about the mean is indicated by the standard deviation, σ: the larger the standard deviation, the flatter the bell shape.

345_The normal distribution.png

Statistical control of such a process is concerned with detecting the effects of assignable causes of variability on the process mean and standard deviation.

1451_The normal distribution 2.png

Posted Date: 3/15/2013 5:37:37 AM | Location : United States







Related Discussions:- Normal distribution of frequency in the histogram, Assignment Help, Ask Question on Normal distribution of frequency in the histogram, Get Answer, Expert's Help, Normal distribution of frequency in the histogram Discussions

Write discussion on Normal distribution of frequency in the histogram
Your posts are moderated
Related Questions
Why is exporting the most popular initial entry method?

What are the arguments for and against social responsibility on the part of businesses? Please in addition, which set of arguments is more compelling?

What are the relationships between perceptions, attitudes, behaviours, and job performance

Why is basic instruction valuable? When should it be used?

Examine two primary causes of HR failure in multinational ventures. Provide an analysis that describes the manner in which each of these causes can be overcome by having the approp

A manager nodding to express to a subordinate who is making a useful comment during a staff meeting is a example of/1.equity exchange/2.postive reinforcement/3 executive conditioni

I need help with a three page paper, due on Sunday. Ashford Library to research living or deceased, who you admire. Explain whether the leaders style is transactional or transforma

L. Houts Plastics is a large manufacturer of injection moulded plastics in North Carolina. An investigation of the company's manufacturing facility in Charlotte yields the informat

• Summarize how this chapter is of value to two of the following individuals: o A new business owner of a residential and commercial carpet cleaning service o The executive d

Superior Products Inc. is considering two potential equipment alternatives for production of their best selling product line. Option 1 involves proven equipment: Fixed cost investm