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September 20, 2014

September 20, 2014

Posted by **Tracy** on Friday, February 1, 2013 at 11:01pm.

large a sample is necessary to have a standard error

that is:

a. less than 4 points?

b. less than 2 points?

c. less than 1 point?

- Math -
**PsyDAG**, Saturday, February 2, 2013 at 11:11amSEm = standard error of the mean

SEm = SD/√n

Insert values and solve.

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