iSixSigma

MinitabUser1829

Forum Replies Created

Forum Replies Created

Viewing 5 posts - 1 through 5 (of 5 total)
  • Author
    Posts
  • #254066

    MinitabUser1829
    Participant

    For missing values in Minitab, consider the following situation:

    Suppose I have 3 observations, then a missing value, then 3 more observations as shown below:
    12.1
    13.6
    11.9
    *
    12.7
    14.2
    13.3

    Minitab does not treat 11.9 and 12.7 as if they were adjacent. In other words, when computing the moving ranges for an I-Chart, Minitab does not compute the moving range between 11.9 and 12.7. In the end, there are only 4 moving ranges, not 5.

    Keep that in mind when comparing Minitab results to other software.

    1
    #253775

    MinitabUser1829
    Participant

    Take a look at the Minitab Help System, at the topic called Gage Linearity and Bias Study. Here is a direct link to the topic:

    https://support.minitab.com/en-us/minitab/20/help-and-how-to/quality-and-process-improvement/measurement-system-analysis/how-to/gage-study/gage-linearity-and-bias-study/before-you-start/overview/

    0
    #250212

    MinitabUser1829
    Participant

    Statement #2 seems a little odd, maybe even incorrect.  I say maybe because I would need to see the statement in context.  A confidence interval is not a statement about individual items (hamburgers), so statement #2 seems wrong on it’s surface.

    0
    #249376

    MinitabUser1829
    Participant

    You can use the same steps as outlined in the document I attached before, with 2 changes:

    • For step 5, calculate the average number of defects.
    • For step 6, use Calc > Probability Distributions > Poisson.  For the Mean, enter the number computed from step 5.

     

    0
    #249358

    MinitabUser1829
    Participant

    I have attached a document which gives the method for computing Expected Defectives.  An example is provided.  The screenshots are from an older version of Minitab, but the method is the same as what is in Minitab 19.

    Attachments:
    1. Instructions.docx
      You must be signed in to download files.
    0
Viewing 5 posts - 1 through 5 (of 5 total)