Monday

September 1, 2014

September 1, 2014

Posted by **florence** on Monday, October 14, 2013 at 7:51pm.

- statistics -
**Kuai k**, Monday, October 14, 2013 at 8:37pmz = (125-123)/(9.6/sqrt(144)

z = 2/(9.6/12)

z = 2.5

z-table

1-.0062 =0.9938

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