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
Explain Quality Control. Quality Control: Control is a system for measuring and inspecting (checking) a phenomenon.  This suggests when to inspect, how often to inspect and h

What type of culture is desired by Mr. Good¬ night to meet his goals? Discuss.

1. Show graphically, and explain, the relationship between the different levels of management, types of problems, and types of decisions. What do we mean by the term "bounded ratio

White, Fring, and Pinkman are partners in the operation of the A1A car wash. Without Fring's knowledge, White and Pinkman sold 10 percent of their interest in the business and its

Activity Sampling - Process Design This is a method of finding the percentage occurrence of a certain activity by statistical sampling and random observation. It is used when

Strategic Plan For this assignment, you will need to choose a company that you have familiarity with or knowledge of their corporate structure and strategies. You may choose to

According to the text there appear to be very limited opportunities for input substitution in the production of fire protection services. Which of the following is the most plausib

What are the major operational functions in the organisation? Main operational functions in the organisation are as follows: • Marketing and sales for example, identifying w

Apply a proces smodel to a services industry process that experiences problems with either internal or external customers. Discuss all elements

Discuss the long-run consequences of your decision.