Question: =+output for comparing a laboratory method to a new relatively quick and inexpensive field method (from the article Evaluation of a New Field measurement Method

=+output for comparing a laboratory method to a new relatively quick and inexpensive field method (from the article “Evaluation of a New Field measurement Method for Arsenic in Drinking Water Samples,”

J. of Envir. Engr., 2008: 382–388).

Two-Sample T-Test and CI Sample N Mean StDev SE Mean 1 3 19.70 1.10 0.64 2 3 10.90 0.60 0.35

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