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MSA | Part - 3 | What is Bias study ? | Measurement System Analysis | ௭ளிய தமிழில் விளக்கம்

New Mechanical Mind

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MSA | Part - 3 | What is Bias study ? | Measurement System Analysis | ௭ளிய தமிழில் விளக்கம்
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21 авг 2024

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Комментарии : 77

@newmechanicalmind8818 3 года назад

Let's improve our knowledge in Industry Subscribe here : ru-vid.com/show-UCbsoHyXxtAelbMYicLaHQGQ

@dhandapanidd5198 Год назад

sir format link share sir. your whats up number

@lalithkumar3134 3 года назад

Really your explanation is super & excellent. Easy to understand the concept.

@newmechanicalmind8818 3 года назад

Thank you

@SanthoshSanthoshkumar-fq4nc 2 месяца назад

Thank u sir very nice explanation

@newmechanicalmind8818 2 месяца назад

Thank you Mr.Santhosh

@uthirapathi4453 Год назад

Very nice explanation. Articulated very well.

@newmechanicalmind8818 Год назад

Thank you Mr.Uthirapathi. Keep watching and sharing our videos to other friends also

@bhaskaransundaram3287 2 года назад

fantastic bro, really very very clear explanation,

@newmechanicalmind8818 2 года назад

Thank you bhaskaran. Keep watching and sharing our videos

@manishrathi7331 2 года назад

Thanks sir .... For supportive video

@newmechanicalmind8818 2 года назад

Thank you Manish Rathi. Keep watching and sharing our videos to your other friends

@akashganesan8010 Год назад

much more useful video sir

@newmechanicalmind8818 Год назад

Thank you Ganesan

@arivanandhana583 3 года назад

Super sir very good explanation

@newmechanicalmind8818 3 года назад

Thank you. Keep watching

@muthug123 2 года назад

Very good explanation

@newmechanicalmind8818 2 года назад

Thank you Muthu, Keep watching and sharing our videos

@user-uy3kf9lq1b 3 года назад

As usual super

@newmechanicalmind8818 3 года назад

Thanks a lot

@pathmanathanp2206 2 года назад

Very nice sir thank you sir 🙏🙏🙏🌹🌹

@newmechanicalmind8818 2 года назад

Thank you Pathmanathan. Keep watching and sharing our videos

@vijayanvijayan869 2 года назад

Nice sir. Thanks

@newmechanicalmind8818 2 года назад

Thank you vijayan

@Mohanasundaram18 Год назад

I have a doubt at 18:13 . Confidence level is 1 minus Alpha divided by 2. But we are considering here as only Alpha divided by 2. I am confused on why 1-minus is not considered. Thankyou 😊

@newmechanicalmind8818 Год назад

Hi Sekar, we are taking the t value based on alpha divided by 2 value only and not based on confidence level. This is the basic rule followed to find the t value.

@mahendhiran4681 Год назад

thank you so much sir👍

@newmechanicalmind8818 Год назад

Thank you Mahendhiran. Keep watching and sharing our videos to other friends

@aravinthkumar6649 2 года назад

Thank you sir 🙏

@newmechanicalmind8818 2 года назад

Thank you Aravinth. Keep watching and sharing our videos to your other friends

@saravanaag4629 3 года назад

Sir your video is superb regarding one doubt sir How to calculate the confidence level and risk, how do you say +ve side 2.5 and -ve side 2.5 in case am getting various + and - side value means how do i want to calculate Or else what ever the value observed by operator +/- side we should consider 2.5 %??

@newmechanicalmind8818 3 года назад

Hi Saravanaa, theoretically we have to consider that both side (- / +) 2.5% risk is there. But actually it may vary. So, it is only the assumption and used for calculation purpose

@hazwan2283 Год назад

There is another way to judge whether bias is acceptable or not. That is through the p-value associated to t-statistic bias. According to AIAG MSA 4th edition, bias is acceptable if the p-value associated to t-statistic is less than alpha 0.05. Can you explain the same number example using p-value?. Because i can see p-value result always contradicts with the zero needs to be between lower and upper bound criteria.

@newmechanicalmind8818 Год назад

Hi Muhammad, i try in future

@akashganesan8010 Год назад

t.q sir best explanation sir

@newmechanicalmind8818 Год назад

Thank you Ganesan

@mohammedabdeenakbarali3997 2 года назад

Hi, I have been working in switchgear industry and lately our company has instructed to do MSA study. But we are mostly using instruments such as High voltage test instrument , low voltage test instrument , timing test instrument, snatch gap test instrument bla bla bla. Which MSA study fits for these kind of instruments, could you please assist?

@newmechanicalmind8818 2 года назад

Hi Mohammed, thank you for your comment. Hope you are producing non automotive parts. This MSA study is applicable for instruments which are used for checking the automotive parts. And especially for physical (mechanical type) measuring instrument and gauges only where variations may come due to instrument and inspectors. For electrical and electronic devices used to check the voltage, current , etc, i think calibration only sufficient. Pls check with any other source / experts for re-confirmation.

@mechfieldz 3 года назад

Sir your videos are useful and easy to learn . I need one help , in bias study pls share any link for t table and c appendix table

@newmechanicalmind8818 3 года назад

Dear Narendran, now check the description in part-3. Download links for tables is provided.

@Samynathan_SDM 3 года назад

When will the subgroup value be 2? As per BIAS, We can do only, 1 appraiser, 1 part, 1 parameter,1 place, if I am adding one appraiser to take the same parameter & same part in the same place could it change the subgroup value is 2? please clarify sir, Thanks in advance

@newmechanicalmind8818 3 года назад

Yes, in Bias study the sub group size is based on number of appraiser only

@Samynathan_SDM 3 года назад

@@newmechanicalmind8818 Thankyou sir

@pravinraj6030 3 года назад

excuse me sir i have one doubt based on the bias value we can able find the error in instruments or inspector

@newmechanicalmind8818 3 года назад

Bias study is conducted for instrument only. It should be done by experienced inspector.

@Samynathan_SDM 3 года назад

Sir, Very good explanations.Thanks for your time and efforts. I have one doubt on Bais Excel format In Excel format, you created a Histogram chart. In the histogram chart, you had used some formulas to find out the " Selecting no. of classes =" ( T24 Cell ) Could please clarify this formula and what is meant by 1.Selecting no.og classes ( T24 Cell) 2.FREQ.(W27) 3.CU. FREQ.(X27). Thankyou once again.

@newmechanicalmind8818 3 года назад

Hi Samynathan, 1)(T24) Selecting no of classes is to decide the width of Histogram (if range is small, small width of histogram will come, if range is big, bigger histogram will come by formula, because range divided by no of classes will decide the width). Pls study the formula again. 2) (W27) frequency is used to count the number of values (between histogram's each column) for histogram's bar graph 3) (X27) cumulative frequency is to confirm that all values taken for histogram (total 15) Hope now you understand.

@Samynathan_SDM 3 года назад

@@newmechanicalmind8818 Thank you for your clarification

@vignesh2274 3 года назад

Sir Nanga use pandra formula vanthu bias-[d2×sigma b /d2*(tv,1-alpha/2] enaku d2 value 3.078 entha table la irunthu eduthanganu therila nanga use pandra sub group size 10 sir

@vignesh2274 3 года назад

Sir and also one more doubt t staticala degrees of freedom illa confidence level illa then ethuku athai derive pannanum. Athuku straight ah tables la poi t value edukulamla

@newmechanicalmind8818 3 года назад

I have verified your doubt and giving my comment. 1) You are not using correct formula as per MSA manual 2) You are using d2* - 3.078 - value taken from Appendix C d2* table for sub group size 9.but you have to use 3.18 as per table (use our table - link given in description) 3) Degrees of freedom to be taken from Appendix C d2* table for No of sub group & sub group size. Then actual t value to be calculated based on that degrees of freedom from T distribution table (see our video again). Because that table has values for natural numbers (1,2,3...) only. But we have to find t value for fractions (example 10.8). If you have further doubt. pls send separate comment (not replying to this comment). Then only i can easily view your comment and can reply

@karthikeyanshanmugam6576 Год назад

Hi sir, When bais study requirements for instructions. What are the instrument applicable for bais.

@newmechanicalmind8818 Год назад

It is applicable for all measuring instruments except gauges

@Chinna-zf2ij 7 месяцев назад

Sir, is it common for the alpha values and then the risk factor 95%

@newmechanicalmind8818 5 месяцев назад

Yes

@arunraju5023 3 года назад

Formula la "1- alpha/2 " nu yen iruku. Nama "Alpha/2" vachithana sir t table check pandrom

@newmechanicalmind8818 3 года назад

1-alpha/2 = 95% = confidence level alpha = risk = 5% alpha / 2 = both side (+side & - side) 2.5% risk from reference value (middle) so, t table will be checked by using both side risk ( two tail risk ) so both are different. Hope i have cleared your doubt

@sathyakumar4218 3 года назад

What use of mean value (15.007)of observed measures

@newmechanicalmind8818 3 года назад

The difference between mean value (15.007) and reference value (15.000) will give the bias (0.007).This bias is required for calculation of other parameters

@aravindraj7258 2 года назад

What if we have tolerance spec is + side only ex : 9 /+0.05

@newmechanicalmind8818 2 года назад

Take 9 as reference value. But it is not advisable to take one sided tolerance for conducting bias study

@vignesh2274 3 года назад

Sir simple "t statistical =bias/ sigma b " what it's role in bias study

@newmechanicalmind8818 3 года назад

Hi Vignesh, if t statistics value is greater than significant t value, then the bias is more & will affect the measurement. If t statistics value less than significant t value, then there is very negligible bias only is there and measurement is OK. This point is not told in video. Thank you for asking this right question. Keep it up.

@vignesh2274 3 года назад

U r doing great job sir thanks for ur explanation.

@lalithkumar3134 3 года назад

r u taking any training class for MSA/SPC?

@newmechanicalmind8818 3 года назад

Yes. In my company I am giving training for employees.

@pradeepr5933 3 года назад

Is tis enough for to crack qa qc interview sir

@popatpandhare2039 3 года назад

Dear sir, can you share zala format for bias study

@newmechanicalmind8818 3 года назад

Bias study format download link is given in description

@arivanandhana583 3 года назад

Minitab msa pls upload with explanation

@newmechanicalmind8818 3 года назад

Dear Anbu, i will plan in future

@sushilk3464 11 месяцев назад

Sir can I get SOP for MSA

@newmechanicalmind8818 11 месяцев назад

Hi Mr.Sushil, MSA manual only will explain about the studies in MSA. It is freely available in internet.

@techview6478 2 года назад

Please share this ppt sir...

@newmechanicalmind8818 2 года назад

Hi Mani keep watching and try to make your own for better understanding

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