I'm a packaging intern for a large food/beverage company, and as I'm learning more about QC and testing, I'm starting to actually used some of what I learned in my college statistics course and applying it to my work (I know right? Actually being taught important things in college, who knew?). I'm pretty rusty, so this explanation helps A LOT! Thanks for the explanation!

@joevsfood

Жыл бұрын

This comment is nine years old. I hope yoy are crushing it out there!

Thank you very much for this video. This is quite helpful for my process engineering interview at a major tech company.

Thanks so much Professor. This will help me more in my job. I am eager to see another useful video from you.

Fantastic, easy to understand explanation! My six sigma course lectures couldn't explain it this well.

Just came across this....very good...thanks...12 years later!

well understanding, no more confuse now. Thank you v much.

Thanks so much, this video is very informative. In english, that means you are AWESOME

Really great video,thank you

This is the video i was searching for ;)

great preso / easy to grasp thanks much!

Thank you for understandable video.

Its very useful for me to implement our process and train for our engineers

many thnks for making this video....truly useful

thanks. you have a very clear way of explaining.

thnku very much for this amazing video , all doubt cleared

@kaidrared9120

6 жыл бұрын

JATINDER SINGH. I don't feel like watching it whats cpk ?😂😭😭

Thank you Professor!

Thank you very much Sir! You are awesome!

Thanks, very good presentation

Great video thank you

How to interpret Cpk value? More detail please?

Thank you sir! very helpful!

very one tailed explanation....

impressive sir..!

thanks for making this easy

wow...good explaination sir,i want to ask something, i am learning this, and if i am not wrong if i draw a vertical line at graph(at 0.45sec part of video) then i notice that -3 value corresponds to 4.00 value of x axis , i hope that 4.00 on y axis is just a data point , so any data assumed that has minimum value=4, maximum value=16 and overall average=10 , am i right ?? please do answer..i will be thankful...

Marty Graw. Love it! ;)

Very simple, I like it

Clear and concise!

My question is that in 6 sigma the graph is used of +/- 6 sigma & for Cpk graph is used of +/- 3 sigma as per formula of X axis what is the difference . Please sir answer it.

Niceeee thank you for this video!

How do you calculate that 2.28% out of spec. using Cp?

this helps.. Thanx sir

thank you Sir

hey, I have a question. Where does the CpK of 1,33 come from? I never found or got a proper explanation how it was calculated?

@davidbohn8986

5 жыл бұрын

It has to do with Six Sigma. Our manufacturing process requires the distribution to have LSL located six deviations below the mean and USL six deviations above the mean. From the interweb: "Cpk 1.00 means that 2 700 PPM (0.27%) of the manufactured parts are out of tolerance, while Cpk 1.33 means that 63 PPM (0.0063%) are rejects. ... In concrete terms, Six Sigma means that the company's processes maintain six standard deviations from the mean value of the process to the nearest tolerance limit."

@azzmansaid7828

4 жыл бұрын

1,33 is the result of 8Sigma/6sigma

brilliant thanks!

Thank you! :)

thank you professor

good, thanks.

soo good...

Awesome!!

very helpful

All of our stuff is done automatically, no need for QC, all we do is address the problem area when something comes up. It even sources best value to fix along with options for future fixes or restructuring any part of the life from dig to done. The dedicated computer even gives figures on changes by searching the newest along with the most reliable and runs hundreds of different economic downturn profiles of different industries to give us an advanced heads up so we can make adjustments to keep ahead of the trend. It's like having a fortune teller on staff, this thing literally replaced 17 $165k per year jobs and paid for itself in 31 business days.

it is good doctor but still nt clear for me when Cpk is= .67 what does that mean in term of prodcution percentage %

THanks, Sir

Well Explained

Thanks lot..

so why is Cp needed? Just calculate Cpk all the time. Is there a reason? thanks!

@sunilthakur6314

7 жыл бұрын

lromeroyt Dear it's two different thing b/w cp & cpk. cp clear that is we are capable for that process .Cpk tells you how much me are capable for this process .cpk is an Index .

Watching in 2022, Thank you so much Sir!!

very useful

Very helpful thank you :)

thanks

Professor, can you please explain the difference between CPK and PPK

@kenemodilim7755

6 жыл бұрын

Cpk shows the capability of a process whether or not its mean is exactly centred between its specification limits. Now the main difference is the PPk provides a more long term view by using overall standard deviation and considers swings and drifts in subgroups, also accounting for variation, while the cpk which uses the "within standard deviation" doesn't consider drifts and shifts within the subgroup and presumes there's no variation in the subgroups. It only shows the capability of a process to produce parts that fall within the spec limits if there isnt variation in the sub groups

Please on the diagram I saw 2.29%. Please sir can u explain? Am having difficult over there. Thanks

So...how does each single digit on your z line become 2?

@anthonytomaro8278

5 жыл бұрын

2 is the standard deviation. The numbers on the Z line represent sigmas. Each sigma changes by 2. 3 sigma above and 3 sigma below.

In addition, in your first example, the average of the Process Variation (bell curve) is NOT centered between the specifications, so you should know that you must be using the Cpk formulas to calculate the Process Capability instead of the Cp one. Feel free to replay.

@PQsystems

3 жыл бұрын

Data can be out-of-spec, yet Cp still be acceptable. Cp only compares allowable spread (width) to actual spread (width). Unlike Cpk, Cp does NOT take the mean into account. Think of Cp as this: Does this distribution have the Capability Potential? If Cp is 1.17, for example, this means that Cpk could be as high as 1.17. This example is for bilateral tolerances. There was no indication or statement that this is a situation with one specification. This example could have come from any process that can have negative values, thus the LSL = 0 is appropriate.

In college we have on the teacher's Pdf notes saying that CPk is the lowest value of ZL/3sigma or ZU/3sigma....? Is that the same?

@marcusj1710

5 жыл бұрын

Yes, basicly.

What?

How it is 99.73 %? Didn't understand this part.. other things are awesome..!!

@lythis2002

7 жыл бұрын

Empirical Rule

@PianoChuck

7 жыл бұрын

sagar rakhe 3 standard deviations in either direction together holds 99.73% of the curve.

I think you are wrong, for instance, in your first example you calculated a Cp = 1.17 and the right extreme of the Normal Distribution Curve is clearly OUT OF SPEC! so your result of Cp=1.17 is wrong. You Professor Clearly got that result because you are also wrong in using the Cp formula to calculate the Process Capability for an UNILATERAL tolerance: LSL=0 and USL= 14 is an unilateral tolerance!, you should know that Cp formula only applies to calculate Process Capability for BILATERAL tolerances.

funny six sigma haha like the methodology on learning in class along with calculating cp and cpk in high school that is

@orange70383

6 жыл бұрын

We did this at Motorola in the early 80's, master black belt and 3 year champion status yea'

مةتىااناحمخ

DONT UNDERSTAND HEAD OR TAIL OUT OF IT... VERY BAD EXPLANATION......

@BluesLicks101

7 жыл бұрын

Learn English, and pay attention... its a very clear and good explanation.

@ving1310

6 жыл бұрын

blue LICKS, watch ur mouth..... otherwise...licks as what u called.... just keep to your self....

thank you sir