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September 18, 2014

September 18, 2014

Posted by **Mark** on Friday, April 25, 2014 at 4:41pm.

As part of its testing program, LongLast tests a sample of 25 batteries.

What is the standard error of the mean?

- Math -
**Damon**, Friday, April 25, 2014 at 4:49pm - Math -
**Mark**, Friday, April 25, 2014 at 5:03pmThat does not help calculate the standard of error.

- Math -
**Damon**, Friday, April 25, 2014 at 5:10pmhttp://www.miniwebtool.com/standard-error-calculator/

8/sqrt(25) = 8/5 = 1.6

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