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Project Maths Percentage Error

  • 19-03-2015 9:08pm
    #1
    kebab12
    Registered Users Posts: 5 ✭


    So my teacher is really confusing me for higher level leaving cert maths and he just can't answer this question: When I'm looking for the percentage error do I use the 1/the square root on n. He says that it may be a different formula this year but won't say what it is. Thanks.


Comments

  • #2
    Kremin
    Registered Users Posts: 944 ✭✭✭Kremin


    kebab12 wrote: »
    So my teacher is really confusing me for higher level leaving cert maths and he just can't answer this question: When I'm looking for the percentage error do I use the 1/the square root on n. He says that it may be a different formula this year but won't say what it is. Thanks.

    https://www.folens.ie/sites/default/files/resources/ML5303_AM4_Bk2_Booklet%20eBook.pdf

    1/rootN isn't used anymore because it's inaccurate/ only 95% confidence.

    the new formula is +-1.96(sigma/sqrtn) You should read that anyway.


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