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Math Help - Simple stats for you.. not for me! Help!

  1. #1
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    Wink Simple stats for you.. not for me! Help!

    Hi probably a very simple question for most! I would like to calculate whether there is a significant difference between the proportion of babies who have low birth weight between nine neighbourhood areas.

    See below for the proportions for each neighbourhood:
    1.01
    0.87
    1.96
    1.07
    0.51
    0.00
    2.24
    1.60
    0.00

    How would I test to see if these numbers differ from one another?

    Any advice gratefully recieved..
    Thanks
    Last edited by BdeV; September 20th 2005 at 06:17 AM.
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  2. #2
    Site Founder MathGuru's Avatar
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    Lightbulb

    You want to calculate the standard deviation of your set of data.

    This type of probability is called single variable statistics.

    I have attached an excel file that will help you get started.

    I would say that this is not a normal distribution and that there are significant differances in the neighborhoods. Mainly because some of the neighborhoods fall much more than one standard deviation away from the mean (average).

    Also just by looking at the frequency graph this does not look like a normal curve.

    Hopefully someone can follow up and help some more.
    Attached Files Attached Files
    Last edited by MathGuru; September 20th 2005 at 09:00 AM.
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  3. #3
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    Thanks

    Thank you!
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