Posted by maribel on Saturday, May 7, 2011 at 4:45pm.
I don't know how you are using Excel, except if it has the proportions of a normal distribution.
Z = (score-mean)/SD = (score-360)/9
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the Z scores that correspond to the above proportions. Insert the Z scores in the equation above to find the scores(weights).
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