Statistical Process Control | Chart for Means (x-bar chart)

This video shows how to construct x-bar chart from process data and determine if the process is in control.
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How to Construct a Control Chart in Excel:
• How to Construct a Con...
c-chart
• SPC 4: c - chart (Cont...
p chart
• Statistical Process Co...
R-chart
• Statistical Process Co...

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2 days of searching and watching long videos that did not clear anything up. and here are your videos, 4 minutes long with everything you need to know. great job, thank you very much.

[@eren_1oglu]

Man you are the CEO of control charts, thank you so much

[@shasivarma7425]

spent 1 hour trying to understand this from my college notes and this guy just solved my problems in 3 mins. love you man!

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[@tapiwanalwimba6065]

Awesome explanation, still valid and simplified.. thank you.

[@joshemman]

My pleasure, Tapiwa. 🙏

[@IrshadAhmed-uf8lt]

so simple, crisp and to the point, keep doing the good work. you voice modulation is also to the mark.

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[@lazhan2489]

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[@joshemman]

My pleasure, Lazhan.

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[@natalieadeeleh4453]

very helpful and straightforward! thank you

[@NikhilSharma-fw4pc]

best video on X-bar chart

[@RedPencil31]

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Thank you Joshua

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awesome explanation.

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Solid explanation

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Spr class easy to understand thnkuu sir

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[@joshemman]

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[@thenicksonstvofficial.8904]

Since I knew your channel it has been my best learning center but I have lacked cusum charts sir, kindly find time to do a lesson on that.

[@LinoJustin]

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[@kassimolawale4223]

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[@vinothsathiyavan8328]

If I am taking the daily 5 samples reading means, my LSL and USL will fluctuate. Then how to plot the values in daily basis(if am plotting daily avg values manually)

[@rizwanuzzaman7800]

thanks...

[@christophergomez5131]

if the points you plotted were the same in the video, but the one out of control we within the UCL and LCL, would that mean it is in or out of control even if the majority of points is skewed upwards

[@praveennamballa2926]

Super bro

[@manazirahsan1351]

Best

[@bhuwanupreti4207]

But how to maintain its on shopfoor. How to operator filled this limit

[@joshemman]

[@bassalmalik2208]

Joshua Emmanuel hey can you please do a video on cusum control chart on R studio.

[@dmukherjee7956]

Where and how to find value A2?

[@AhmedAhmed-uq1tg]

How did u find the values of A2?

[@damimongebas]

A set of data has a mean of .634 unit and a standard deviation of .005 unit. Construct an X Bar chart if the number of samples is 5

[@xrosnero]

why did we use A2 and not A3? how to determine?

[@timbking9687]

❤️

[@HasteRaho2219]

Tq

[@younesnaciri4926]

hi, how can we have n=1 ? Because in my SPC card, i have n=1 and i dont know why

[@brudo5056]

Hello. It takes some time, sampling and processing to get to those UCL, LCL and mean value. So when you come to this situation like data point 5 is out of control then normally one cannot go on just like that but must consider what to do with this outlier and what to do with the limits... When (condition) and how (procedure of recalculation) to reset the new upper&lower control limits. Is there a video or clear procedure for available ?

[@joshemman]

The existence of an outlier signals an out-of-control system. Given that history cannot be rewritten, the outlier cannot be erased, and subsequent recalculations are not possible. Rather, the outlier serves as a clear indication that the system was not operating correctly. It prompts the need to pinpoint the responsible factors and proactively address the root cause for a more reliable and stable system.