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Do You Know...
  • that poor sampling

    • underestimates the mean
    • artificially increases the variability
    • generates outliers
    • increases the number of samples required

  • that concentration is sample size dependent

  • that random location alone is not enough to eliminate sampling bias

  • the difference between a composite and multi increment® sample

  • the seven major sampling errors

  • that sampling error can be controlled

  • the two types of heterogeneity and how they impact sampling error

  • how to calculate sampling error

  • how to make your sampling defensible

  • why replicate analyses do not agree - it may not be the lab

  • how to minimize sampling costs

  • how to properly collect a multi increment® sample
...if not, contact EnviroStat!
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