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Пікірлер
@jeejin2686 Күн бұрын
Good video sir, I have a question, if P value lack of fit less than 0.05 but r square more than 90, So I can use this model to predict or not
@instituteofqualityandrelia7902 Күн бұрын
Good question! If p-value of LOF is low, the model is not fitting well. You can try transformations such as box cox. If you still get a similar p-value, you will need to decide whether some more factors need to be added, or change levels or use the model with caution.
@jeejin2686 Күн бұрын
@@instituteofqualityandrelia7902 thank you very much sir
@BharathReddy-p7j 8 күн бұрын
Dear Sir, I have one doubt... Actually Cpk is calculated by using the standard deviation (within) but you have shown in the video calculating by using standard deviation (overall). Could you please clarify.. Thanks in advance
@instituteofqualityandrelia7902 6 күн бұрын
Hello Bharat, you are right. This video is intended to explain the basic concepts. The within and overall sd is applicable when we use control charts. Maybe in one of the videos, I will talk about these. Thank you for your keen interest.
@BharathReddy-p7j Күн бұрын
Sir, thanks for the reply, it will be grateful if you provide the video, it will be really helpful for the career growth. I will be waiting for the video.
@joseantoniovargasbazan5058 11 күн бұрын
Thanks for the excellent overview of the topic.
@instituteofqualityandrelia7902 9 күн бұрын
Welcome! Appreciate your feedback!
@madhuriswami9376 13 күн бұрын
Thanks sir im using this DOE I'm completed my research in M.pharm thank you sir
@instituteofqualityandrelia7902 9 күн бұрын
Most welcome! All the best!
@coobi3784 13 күн бұрын
How can I get Minitab?
@instituteofqualityandrelia7902 9 күн бұрын
You can download the 30-day trial version from www minitab.com
@haqiasekarmaharani2550 14 күн бұрын
Sir, is the method match to analyze the risk of production process of food industry?
@instituteofqualityandrelia7902 9 күн бұрын
You can use it for any system.
@rahulprajapati4638 15 күн бұрын
Hello sir, kind request to upload lectures about MS Power BI or Tableau 🙏🙏🙏
@instituteofqualityandrelia7902 9 күн бұрын
Thank you. However, that is not my expertise. Apologize.
@sugambhardwaj213 21 күн бұрын
Wow. Such good information with easy examples. Great Job Sir
@uhemant1 21 күн бұрын
Thank you!🙏
@instituteofqualityandrelia7902 16 күн бұрын
So nice of you
@leezhisen1704 26 күн бұрын
Hi sir, regarding the application exercise question, what would be the MTBF since it has 0 failure, which T/F would actually give infinity?
@instituteofqualityandrelia7902 9 күн бұрын
You can estimate the lower bound of MTBF in case of zero failure in case of time terminated test. See formula and tempate. Download template from our website www.world-class-quality.com
@leezhisen1704 7 күн бұрын
@@instituteofqualityandrelia7902 I see, so for zero failure we can only estimate the lower bound value. Thanks!
@BNT05 27 күн бұрын
Thank you Sir for sharing your knowledge and experience for free. Be blessed. 👋 Are your datafiles have the solutions in place?
@instituteofqualityandrelia7902 9 күн бұрын
Please clarify your question. I didn't understand it. The data files do not have solutions.
@BNT05 9 күн бұрын
@instituteofqualityandrelia7902 Thanks for coming back to me. I meant to say that if you have an example(s) of each subject on a dataset. For example, you can have a few datasets on Run Chart, but at least you have shown your audience how to go about...in one of them
@rambrandtvanrijn Ай бұрын
In this example, we are sure about all the raw data are operation time of failure, right? Another question: Isn't a smaller Anderson-Darling value indicative of a better goodness-of-fit? Why is the Weibull distribution considered the most appropriate when the exponential distribution has the smallest value?
@instituteofqualityandrelia7902 28 күн бұрын
Hello friend, that is a very good question! Yes, the lower value of AD shows better fit. Choosing Weibull is still safe as Exponential is only a special case of Weibull with a shape parameter of 1.
@donnymac575 Ай бұрын
Can minitab plot multiple accelerating factors at the same time, like temperature and humidity?
@uhemant1 Ай бұрын
Thank you for asking an excellent question! Yes, Minitab can analyse data of an accelerated life test with two variables.
@donnymac575 Ай бұрын
@@uhemant1 thank you for the response 😊
@Qpac524 Ай бұрын
Greetings Professor! Thank you for your highly invaluable videos, I found them to be extremely useful. I just have one question: are you familiar with the software 'Cornerstone' for DoE? Can you recommend any links where I can find tutorials for Cornerstone?
@instituteofqualityandrelia7902 28 күн бұрын
Thank you! I am glad to know you are finding the videos useful! I am not aware of the software mentioned by you. Apologize.
@seshansesha7645 Ай бұрын
Thank you
@instituteofqualityandrelia7902 Ай бұрын
My pleasure!
@hamidbouaricha9714 Ай бұрын
How to represent a standby pump in RBD
@instituteofqualityandrelia7902 Ай бұрын
A standby pump would be in parallel with the primary pump with a switch. The reliability of the switch also needs to be considered.
@harryzhang4239 Ай бұрын
Hi Sir, what if we're studying a system, for example, computer? There're so many components in it. Do we need separate the data by diff. failure modes or just combine them together? Thanks!
@instituteofqualityandrelia7902 Ай бұрын
You need to separate the failure modes for taking improvement actions. For growth calculations, all failure modes should be considered.
@harryzhang4239 Ай бұрын
@@instituteofqualityandrelia7902 Thank you so much for the quick answer. I'm studying the warranty. So I need consider all failure modes. Rght?
@kamyarghods2429 Ай бұрын
good initial insight about the accelerating methods
@instituteofqualityandrelia7902 Ай бұрын
Thank you!🙏
@Juna-69 Ай бұрын
Sir, why exponential coefisien correlation always *?
@instituteofqualityandrelia7902 28 күн бұрын
I am not sure why Minitab does this often. However, Exponential is only a special case of Weibull Distribution with a shape parameter of 1. So if you select Weibull, Exponential will get included, if it fits.
@ranjithkumar-qb9xy Ай бұрын
thank you. video was informative
@instituteofqualityandrelia7902 Ай бұрын
Glad it was helpful!
@FernandoFerrariFernandes Ай бұрын
Why in some cases there is a time in the column even when genset did not fail?
@instituteofqualityandrelia7902 Ай бұрын
Hello Fernando, Thanks for your interest. There are two gensets. So the time is time column shows data when any of the genset fails. Hope this is clear.
@FernandoFerrariFernandes Ай бұрын
Yes I got it. When performing this analysis using Minitab the results are different. Also, how this Eta and Beta relates to shape and scale parameters informed when using Minitab?
@thinuraramsith Ай бұрын
very good explanation
@instituteofqualityandrelia7902 Ай бұрын
Glad you think so! Keep watching!🎉
@vatsalparikh3574 Ай бұрын
Awesome Concise
@instituteofqualityandrelia7902 Ай бұрын
Thank you!🙏
@karthikeyanvenkatesan1009 Ай бұрын
Hello sir, Thank you for this wonderful video. Is it possible to share the excel sheet used in the video ? it would be of great help. Thanks again for the explanation. it is very clear.
@instituteofqualityandrelia7902 Ай бұрын
Appreciate your feedback! I suggest that you create the xl worksheet for better learning and understanding!
@GioPalencia 2 ай бұрын
Very clear and direct to the point. Thank you so much!!!
@instituteofqualityandrelia7902 Ай бұрын
Thank you!🙏
@STIBLOPP2023 2 ай бұрын
Sir...Thanks a lot for the DFMEA video.....Very well explained
@instituteofqualityandrelia7902 2 ай бұрын
Most welcome!
@shanmugavelayutham1394 2 ай бұрын
hi, @11:02 63% failure u mentioned but actually it is 66.9% failure right??
@instituteofqualityandrelia7902 2 ай бұрын
No. 63% is correct. For Weibull distribution, by time equal to scale parameter, 63.2% parts are expected to fail. You may like to watch my video on Weibull distribution. Here is the link: kzfaq.info/get/bejne/mt6nn7yLkp7Dd4E.html
@eamonnquinn9585 2 ай бұрын
good and clear tutorial on this topic - Thank you
@instituteofqualityandrelia7902 2 ай бұрын
Glad to hear that it was helpful! Appreciate your feedback!
@kuldeepjayaswal9933 2 ай бұрын
Name of software
@instituteofqualityandrelia7902 2 ай бұрын
I have used Minitab software. There are other software such as Weibull++.
@sudhansugrahacharya7094 2 ай бұрын
<5 failure or >=6 failures out of how many samples? what should be the sample size sir??
@instituteofqualityandrelia7902 2 ай бұрын
It is basically for test time in multiples of lower test mtbf.
@azizvohra871 2 ай бұрын
How the simulated values are derived?
@instituteofqualityandrelia7902 2 ай бұрын
These are calculated based on probabilities as per assumed distribution.
@harryzhang4239 2 ай бұрын
Hi Sir, why is the Hazard rate 1/i? just because of one failure among i?
@instituteofqualityandrelia7902 2 ай бұрын
Thank you for your interest. 1/i is delta hazard where i is the reverse rank. The reverse rank represents items at risk just prior to t. Thus proportion of items failing out of SURVIVING population during the interval is by definition delta of hazard rate. You may like to watch my video on hazard rate. Here is the link: kzfaq.info/get/bejne/ZsdddalhmJyomWg.html
@Doctor-Lean 2 ай бұрын
Thank you so much for sharing the VDO so, I request training apply concern with heuristic model if possible to sharing concept.
@instituteofqualityandrelia7902 2 ай бұрын
Thank you for your suggestion. Kindly clarify your expectations.
@sudhansugrahacharya7094 2 ай бұрын
how to get the effectiveness factors of the corrective action??
@instituteofqualityandrelia7902 2 ай бұрын
It is explained in the video. You can also refer to the paper referenced.
@dhinakaranm4805 3 ай бұрын
The video is really useful
@instituteofqualityandrelia7902 2 ай бұрын
Glad you think so!
@sumitgharge1298 3 ай бұрын
Hello sir ... Can I run the botched runs I minitab?? And please tell if it is possible then they give very accurate results to consider for further analysis in DOE to find significant factors??
@instituteofqualityandrelia7902 2 ай бұрын
Thx. But I haven't understood your question.
@shubhampawar5294 3 ай бұрын
Great video
@instituteofqualityandrelia7902 2 ай бұрын
Glad you enjoyed it
@AhmadAli-rm3pi 3 ай бұрын
very nice lecture i solute you thank you sir
@instituteofqualityandrelia7902 2 ай бұрын
So nice of you
@MEKalp 3 ай бұрын
Great and clear explanation, thanks for sharing 😊
@instituteofqualityandrelia7902 2 ай бұрын
You’re welcome 😊
@sumitgharge1298 3 ай бұрын
Hello sir can you please tell me how we can find the values of shape parameter and scale parameter??
@instituteofqualityandrelia7902 3 ай бұрын
Thank you! Please watch my video on how to estimate beta and eta parameters using probability plotting. Here is the link: kzfaq.info/get/bejne/mtmlf7mEl9-1ZIk.htmlsi=i7saq3ej5S-wkYKk
@sumitgharge1298 3 ай бұрын
@@instituteofqualityandrelia7902 Thank you very much sir..
@sumitgharge1298 3 ай бұрын
Hello sir can you please tell me how we can find the values of shape parameter and scale parameter??
@instituteofqualityandrelia7902 3 ай бұрын
Watch my other video: kzfaq.info/get/bejne/mtmlf7mEl9-1ZIk.htmlsi=i7saq3ej5S-wkYKk
@sumitgharge1298 3 ай бұрын
@@instituteofqualityandrelia7902 Sir can you tell me how we can decide which plots are good and which one is to choose or very helpful for further analysis after conducting the ALT How to decide plots according to what??
@memsuniverse 3 ай бұрын
great example and effective way to explain DEO , many thanks for the explanation
@instituteofqualityandrelia7902 3 ай бұрын
I am glad you liked it!🎉🙏
@MohammadBintangRizqiPratama 3 ай бұрын
Thanks for the explanation, but still i have question. In a real case e.g determining the components reliability of a machine, what is the ß value? Because sometimes, when it broke, u just need to repair the components and it will run again (basically we use MTBF on this situation), and sometimes when it broke you need to change the components so it would start again (non repairable units, and this we use MTTF). What is the ß value then?
@instituteofqualityandrelia7902 2 ай бұрын
Beta value is estimated from the data of past failures.
@sumitgharge1298 3 ай бұрын
Hii sir, why i get the zero error, zero SE coefficient, zero P and T values in minitab when i run the two level two factor design for design of experiments can you please tell this..
@instituteofqualityandrelia7902 3 ай бұрын
This is possible when you do not have any degrees of freedom for the error term.
@sumitgharge1298 3 ай бұрын
@@instituteofqualityandrelia7902 because of this in minitab I didn't get the values of p test , f test and SE Coefficient So how I can resolve this??
@sumitgharge1298 3 ай бұрын
@@instituteofqualityandrelia7902 basically I'm facing this problem when I use the minitab software and I have created 2 level 2 factor full factorial design in this, when I checked for the significance then I didn't get any P values ...
@instituteofqualityandrelia7902 3 ай бұрын
Yes. This is called a saturated design. If you replicate the design, your problem will be solved as then you will get enough degrees of freedom for error. With two replicates, there will be 8 runs. Total degrees of freedom will be 7 and there will now be 3 degrees of freedom for error. Hope this helps.
@sumitgharge1298 3 ай бұрын
@@instituteofqualityandrelia7902 Thanks sir . .👍🏻
@noisysimple9309 3 ай бұрын
how can i contact you Sir. Any email address.
@instituteofqualityandrelia7902 3 ай бұрын
@arifinwicaksono7 3 ай бұрын
thank you for sharing sir. could you share LDA of left cencored data using minitab too please ?
@instituteofqualityandrelia7902 3 ай бұрын
Thank you! The left censored data can be analysed using similar commands in arbitratily censored data.
@shanmugavelayutham1394 3 ай бұрын
Sir, I have 1 doubt, at 5.45 you said for alpha you mentioned shape parameter. but actually Beta is called as share parameter is it? but in excel we have to consider alpha as a shape parameter. is right?
@instituteofqualityandrelia7902 3 ай бұрын
This is only because in XL, the notation is different. In most literature, the shape parameter is denoted as beta. In XL, the shape parameter is denoted as alpha.
@shanmugavelayutham1394 3 ай бұрын
Good morning sir, How you saying 63% product will fail. where it is mentioned? can you pls explain..
@instituteofqualityandrelia7902 3 ай бұрын
Hello there! This is a property of Weibull Distribution. You may like to watch my videos on Weibull Distribution. Links shown below: Weibull Distribution Part-1 kzfaq.info/get/bejne/mt6nn7yLkp7Dd4E.html Weibull Distribution Part-2 kzfaq.info/get/bejne/jch3aL1ozti5pWg.html
@brianyeh2695 4 ай бұрын
Thank you very much. Clearest of all videos in this topic
@instituteofqualityandrelia7902 3 ай бұрын
You are welcome! I am really glad to know!
@4321blastof 4 ай бұрын
Shouldn't Cpk be calculated using sigma estimator instead of standard deviation?
@instituteofqualityandrelia7902 4 ай бұрын
Standard Deviation can be for sample or population. In this particular case, standard deviation is calculated based on 250 data points and therefore can be practically considered as population standard deviation, If control charts are use and process is stable, the standard deviation can be calculated using the control chart, but then it is considered as 'within' subgroup variation and represents the random portion of the variation.