Are Statisticians needed to read a SPC Chart?

1. Are Statisticians needed to read a SPC Chart?    Have you ever given it a thought that how important is statistics in our everyday life!! Maybe we don't do graphs or statistical calculations every day, but still we are using it in other ways like calculating the average expenditure, determining the weather with some probable conditions, and so on.    But,this is not so easy in case of companies. They make use of this subject in every step, and that too not like everyday life. They need to do graphs, diagrams, calculations in order to determine their position. We often name them as Statistical Process Chart(SPC) where one creates a graphical diagram of the performance being measured and then determine the measures needed to take accordingly.    Statistics is often considered as one of the most tough subjects to study - both in practical and theoretical situations. Well theory is a bit tough though; practically, at times, this may not be the case!!    And after listening to this, the first question that comes to the mind is that will you need a statistician to read SPC Chart which probably is part of you QMS software in your organization!! Well, to understand that you first have to know how does a SPC Chart looks and how does it work. Take a look and then have a read:    Alt Text: ​SPC Chart                                                                                                                                                                                                                                                                                                                                                                            Source: ​http://www.semi.org/en/node/56586     

2. Very distinctly speaking, SPC actually tells you about how various process of your company has changed with time and if it is affecting in a good or a bad way!! With SPC Chart prepared in your hand, you can easily monitor the manufacturing process which is definitely needed to improve the quality of work. Until and unless you can evaluate the manufacturing process rightly, the improvement of you company will also be slow!!    Just think a bit statistically, ​ThumsUp ​has recently launched a new variation - ​Charge​!! Do you think that started producing this without any kind of data analysis!! Of course, not!! They have studied the market that people want to drink something which will be not so sugary yet not even a diet one and have then taken the measure to produce this superhit drink!! And now they have prepared SPC Chart to monitor it which will ensure continuous improvement.     To prepare this chart, you simple need to combine some classical methods of statistics with the time improvement. With chronological analysis, you can then determine the changes in the process and its effectiveness. And as you can see in this chart, this is not so difficult that you will need a statistician to read them!! Yes, SPC Chart can also be read without a statistician because of its simplicity but learning a few basics is important you just can’t start interpreting them.    These charts lets you change the process of production continuously, if needed, as it tells you whether the prior ones are working rightly or not. SPC Chart has always been very effective measure for the continuous improvement and to manage the quality of your company since late 1920s. Companies are still working with them and that too without the inclusion of any statistician.    So, SPC Charts are comparatively easier to understand than any other statistical method. But still, if you come across any other question regarding this process, feel free to type your questions in the comments box below and I will answer them!! And do not forget to leave your feedback on this blog because it will help me in my continuous improvement and quality management of my blogs!!