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    hello2nouman's Avatar
    hello2nouman Posts: 2, Reputation: 1
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    #1

    Feb 5, 2008, 02:24 AM
    What is the usefulness of P-value in the Statistics.
    What is the usefulness of P-value in the Statistics.
    tickle's Avatar
    tickle Posts: 23,796, Reputation: 2674
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    #2

    Feb 5, 2008, 04:42 AM
    All things being equal, and probably an item that has never been tested before, the test level is already predicted before any information is collected. I guess the only usefullness is the P value is used to fill in the gaps.
    jiten55's Avatar
    jiten55 Posts: 105, Reputation: 8
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    #3

    Feb 5, 2008, 05:20 PM
    "P-Value of a statistical test is a probability number that measures the extent to which the sample data are consistent with the Null hypothesis. It represents a compact summary of sample findings in a statistical test....."

    (See page 329, Applied Statistics, By John Neter, 3rd Edition)
    jiten55's Avatar
    jiten55 Posts: 105, Reputation: 8
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    #4

    Feb 5, 2008, 05:35 PM
    FURTHER: See P-value - Wikipedia, the free encyclopedia

    "In statistical hypothesis testing, the p-value is the probability of obtaining a result at least as extreme as a given data point, under the null hypothesis. The fact that p-values are based on this assumption is crucial to their correct interpretation"
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