Endgames Statistical question

Interpreting a low P value

BMJ 2009; 338 doi: http://dx.doi.org/10.1136/bmj.b1381 (Published 08 April 2009) Cite this as: BMJ 2009;338:b1381
  1. John Fletcher, clinical epidemiologist
  1. 1BMJ, London WC1H 9JR
  1. jfletcher{at}bmj.com

    When a health authority introduced a new community based vaccine promotion team, vaccination rates for the MMR (measles, mumps, rubella) vaccine improved over the next two years. The improvement was statistically significant, with a one sided P value of less than 0.01. Which …

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