Hello sir, I am having airborne dust concentrations data as PM10, PM2.5, PM 1 . These data was taken before and during dust producing work in a civil construction site. N=5 How can i compare these before and during operations data ? It seems that there is percent variation in dust concentrations in atmosphere between before and during operation data. e.g., PM 10 ( particle size less than 10 microns) is sharing 40% of total airborne dust, and PM 2.5 ( particle size less than 2. 5 micron) shares 10% of total airborne dust. During machine operation: PM 10 shares 60% and PM 2.5 10% only. It seems that PM 10 share is increased due to that machine operation? Which test is suitable for analysing these type similar data for discussion ? How to use statistics? Any comparison among these particle sizes? thank u.
@@learnandapply I need help 🙋🏻♀️🙆🏼♀️In Standard deviation!! There are tow formulas!?!? I mean one formula we (divided by n-1 ) And the other one we (divided only n ) How i know when to use those !?!
If you going to calculate the standard deviation for population, then you need to use the formula with sigma, and for sample, you need to use the formula with s.
Background music disturbs the learners!
Extremely sorry for that. Yes, it was the problem with the old videos on the channel.
Sir hindi m vedio v provide kijiye
Thank you so much for your valuable comment. I am not good at explaining it in Hindi.
Good explanation very helpful in exam...
Thank you so much for your valuable comments and appreciation!
Hello sir,
I am having airborne dust concentrations data as PM10, PM2.5, PM 1 .
These data was taken before and during dust producing work in a civil construction site.
N=5
How can i compare these before and during operations data ?
It seems that there is percent variation in dust concentrations in atmosphere between before and during operation data.
e.g., PM 10 ( particle size less than 10 microns) is sharing 40% of total airborne dust, and PM 2.5 ( particle size less than 2. 5 micron) shares 10% of total airborne dust.
During machine operation:
PM 10 shares 60% and PM 2.5 10% only.
It seems that PM 10 share is increased due to that machine operation?
Which test is suitable for analysing these type similar data for discussion ?
How to use statistics?
Any comparison among these particle sizes?
thank u.
nice video
Thank you for your valuable comments.
Please share it with your friends and colleagues..
so Measure Of Dispersion is standard deviation and other parameters that shows how the data is spread from the mean ?
Measures of dispersion are the metrics that describe the variation in your data.
@@learnandapply thanks :)
please correct your pronunciations. For n , s . it was so confusing
Thank you for your valuable suggestions!
Excellent teaching sir it's useful for exams 💐💐💐👌
That's great!
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Nice video👍,but please remove background music its distracting
Sure, thank you so much for your valuable comments and appreciation!
Nice explanation! thank you
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Thank you so much sir
Your welcome and thank you for your valuable comments!!
Nice explained ❤️❤️ keep it up 👍👍
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Where can I download minitab
Here is the link for a 30-days free trial:
www.minitab.com/en-us/products/minitab/free-trial/
Can you kindly add subtitle 🙃
Yes, I am working on it. It will be added by today. Thank you for your valuable suggestions. 😊🙏🙏
Subtitles please. I'm having an extremely difficult time understanding you...
Sure, I will upload that in some time.
Thank you for your valuable comments ☺
very creeps and clear explanatiom
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Sir standard deviation mai 9-1kaha sai aa gaya
9 is the total number of readings or observations and (9-1) is degrees of freedom, which is one less than the total number of observations.
i like your way of presentation
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Well done sir i really like it
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Nice class sir
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Well explained, keep it uo
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How to use Excel in examination 🙄
Please use these formulae.
What is the editing video app of this vid ?
It's Videoscribe.
Nice content,i understood everything. Thank you
Thank you so much for your kind words and valuable comments.
To the point. Well done. Thank you faculty
Thank you for all your valuable comments.
It values for me a lot.
Please share these with your friends and colleagues.
As always best presentation.
Thank you so much for your kind words and valuable comments.
This is life saver, thank u sir 🥰🥰🥰
Your welcome, thank you so much for your valuable comments and appreciation!
@@learnandapply I need help 🙋🏻♀️🙆🏼♀️In Standard deviation!! There are tow formulas!?!?
I mean one formula we (divided by n-1 )
And the other one we (divided only n )
How i know when to use those !?!
@@learnandapply I need help in variance!?! When i have to use s^2 and Sigma^2!؟!؟
There are different between them!?!
If you going to calculate the standard deviation for population, then you need to use the formula with sigma, and for sample, you need to use the formula with s.
@@learnandapply 😀😀thanks 🥺
Amazing work..I am watching back to back all videos👍👍
Thank you so much for your valuable comments and appreciation!!
We are starting our Six Sigma Green Belt batch from 4th Jul. If you interested, then please visit for more details at: www.learnandapply.org
really amazing explanation and fantastic style of video! keep going~thanks very much
Thank you so much for your valuable comments and appreciation!
not a great explanation for intro
Ok, thank you for your valuable comments.