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Normal distribution curve in Minitab

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  • November 19, 2002 at 6:02 am #30821

    CPL
    ★ 20 Years ★
    Participant

    I try to draw a normal distribution curve without actual data in Minitab.
    I wan to draw this curve with mean is zero and the standard deviations are marked as ¡Ó1£m,¡Ó2£m,¡Ó3£m. Is it possible for me to use Minitab or Excel to draw this kind of normal distribution curve? If it’s possible, what’s the process of making this curve?
    Thanks a lot for helping me out.

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    November 19, 2002 at 11:25 am #80822

    Matthews
    ★ 10 Years ★
    Participant

    Minitab = Calc – Random Data – Normal – Column C1, Enter ST. Deviation, Mean and number of rows of data (sample size) OKAY
    Then graph Histogram Graph X 1 enter C1 Okay.
    Regards,

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    November 19, 2002 at 4:36 pm #80831

    Gabriel
    ★ 20 Years ★
    Participant

    I am sending an Excel file to iSixSigma. They will attach it to this message soon, so if you don’t see the link to the file try again later. Drawing A Normal Distribution Download [Microsoft Excel, 24 KB]

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    November 19, 2002 at 4:51 pm #80834

    Carl H
    ★ 20 Years ★
    Participant

    Minitab website has a macro catalog wiht one that draws normal curves for you.  You have to go to website, download macro to your macro folder and run it using the command line editor.  Kind of a pain.
     
    Carl

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    November 20, 2002 at 2:56 pm #80873

    MMBB
    ★ 20 Years ★
    Participant

    In MINITAB:
    1. Select Calc > Make Patterned Data > Simple Set of Numbers
    1a. Store in z; first value = -3; last value = 3; steps of 0.1; press OK
    2. Select Calc > Probability Distributions > Normal
    2a. Enter mean; Enter standard deviation; Input column = z (in C1); Optional storage = f (will be place in next open column); press OK
    3. Select Graph > Plot
    3a. Enter the f variable into the Y field; Enter the z variable into the X field.
    3b. Click on the word Symbol in the Display column. Use the Display column dropdown arrow to change the value from Symbol to Connect. Press OK.
    OR this might be easier . . .
    1. Copy the following lines of code:
    Name c1 = ‘z’Set ‘z’  1( -3.5 : 3.5 / 0.1 )1  End.Name c2 = ‘f’PDF ‘z’ ‘f’;  Normal 0.0 1.0.Plot ‘f’*’z’;  Connect.
    2. Use Edit > Command Line Editor to open the editor.
    3. Paste the code into the editor. Edit the “Normal 0.0 1.0” values as needed. The first value is the mean. The second value is the standard deviation. Don’t leave off the period at the end of the line.
    4. Press the Submit Commands button to create the data and draw the graph
     

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    November 26, 2002 at 7:57 pm #81077

    CPL
    ★ 20 Years ★
    Participant

    Is there any possibility to make this curve in SASS or SAS?How can I do it?Thanks again.

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