# Kannan

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Viewing 16 posts - 1 through 16 (of 16 total)
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• #173049

Kannan
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#172994

Kannan
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Plot the data in using Box Plot. Then you can decide on the buckets basis the outcome.
Descriptive stats also would throw some light on the CI of mean, median etc. You may choose to change the significance % as you wish. You may take -CI, Mean and +CI

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#172985

Kannan
Participant

Its is not as good as ASQ.

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#172984

Kannan
Participant

Good one Bower

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#172977

Kannan
Participant

Would appreciate if someone posts a useful learning

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#172975

Kannan
Participant

Whats the harm in using different charts. It would look neat as well

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#172973

Kannan
Participant

Also it is confused to be an effeciency measure over speed measure.

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#172942

Kannan
Participant

Waynej, what is the rational behind 7 samples that they pick up from each lot. You have all the reason to be worried. If your customer understands statistical concepts then you will have to face less challenge. Your curve and customer’s curve would be very close to each other in a long run. Even for it to be so, right sampling at 95% significance level would be a bare minimum.

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#172938

Kannan
Participant

I Guess he means the extreme values. Stan, then what is the reason for the coeffecient to decrease assuming that he is removing the extreme values?

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#172936

Kannan
Participant

Hi there. This is a example of negative correlation. as u keep reducing the extreme values the coefficient. Also this could be because of the non linearity in the data sets of x and y. I would not be surprised if the coeffecient reaches near 0 and then starts increasing again after u remove many data points.

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#171785

Kannan
Participant

i second annon. Just to add. Process capability analysis entails comparing the performance of a process against its specifications. We say that a process is capable if virtually all of the possible variable values fall within the specification limits. Cpk assumes that the data  is normally distributed. The calc for Cp= ((USL-LSL)/6s).
We can modify this equation slightly to account for off-center processes to obtain the Cpk index = min( ((USL-x)/3s), ((x-LSL)/3s) )

you can learn this graohically @  http://elsmar.com/Cp_vs_Cpk.html

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#163925

Kannan
Participant

Hi All
I am very much impressed with the discussion. We are in confusion on the following.
How much % of Outliers can be allowed for Removal from a data set?
Regards
Kannan

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#126599

Kannan
Participant

Hi ,
Customer satisfaction should be in detail not only four category ie , quality
price
delivery
response
these factor when we give a score sheet to customer, they score as they wish
if some criteria set like eg, no of lots accepted versus rej should be the factors to rate on quality
then the assesment by customer would be more precise and those rating can be used for our improvement

kannan

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#118632

Kannan
Participant

Email: [email protected]

Thanks,
Kannan

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#86335

Kannan
Participant

Hi Cactus,
This is a question I often used to ask myself in my early days as a black belt. It almost feels when you finish the project charter you have completed measure phase. But the truth is if you are convinced there is a problem you have seen at some data. So you need to be able to make a Problem Goal Statement that is a combination of Specific, Measurable, Attainable, Relevant and Time bound (SMART). Even if you don’t go to DPMO measurement – you atleast need to have a flavor of # of Customer Complaints due to delay in your processing, The Pain that is caused and any number associated with the pain. Measure Phase has Performance standards where you come up with a goal again and Analyze has Performance Objectives after you have arrived at process entitlement…so it is iterative and what you find after current process entitlement is your final Goal. Understand the relevance of SMART Problem / Goal, then do Performance Standards and finally Performance Objectives.
Cheers

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#85860

Kannan
Participant

Thanks for your response. I do know the Y and the Y is Delivery Time. I agree with you on both being Xs but this is only to establish a relationship. Also just for you to know the salesman as per a moods median test (non-normal data) is not a critical X. I am still not clear of using a regression equation for discrete Xs.

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Viewing 16 posts - 1 through 16 (of 16 total)