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A lab technician had two different sets of findings for which she had different averages for, as well as two different standard errors. She found the following: Average #1 = 500 grams SE = 10 Average #2 = 600 grams SE = 15 What is the standard error for the difference of the two independent quantities? 12.5 sqrt 150 sqrt 100 + sqrt 12.5 100/12.5 sqrt 325

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Carlos Rodriguez <carlos@math.albany.edu>

This problem was contributed by a student in Elementary Statistics. It is offered as it is with no warranty of any kind
Last modified: Wed May 13 12:29:11 EDT 1998