I am reading research papers and I requirement backing good judgment what this medium (p<0.001)? what does the p stingy?
Answers:
The previous answer is correct, but to put it in terms everyone can understand a p importance of <0.001 means that there is less than a 0.1% probability that the difference within compared results was due to chance. To reiterate, generally things a held to be significant when here is less than a 5% probability that the difference observed was due to chance alone (p <0.05).
The lower the p helpfulness is, the statistic they are presenting is more significant. Generally, something is significantly different at a p value lower than 0.05 (p<0.05) so if p is lower than 0.001, one can comfortably say that some two experimental values are significantly different.
p value comes from the student's t-test (http://en.wikipedia.org/wiki/T-test)
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