Homework Help: statistics

Posted by Katie on Sunday, September 4, 2011 at 9:50am.

One year, professional sports players salaries averaged 1.6 million with a standard deviation of .7 million. Suppose a sample of 100 major league players was taken. Find the approximate probability that the average salary of the 100 players exceeded 1.1 million.

statistics - PsyDAG, Sunday, September 4, 2011 at 12:32pm
Z = (score-mean)/SEm

SEm = SD/√n

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score.

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