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August 20, 2014

August 20, 2014

Posted by **darrell** on Friday, January 6, 2012 at 2:59pm.

a. what is the probability that the sample mean will be greater than m=510? in symbols, what is p(m>510)?

b. what is the probability that the sample mean will be greater than m=520? in symbols, what is p(m>520)?

c. what is the probability that the sample mean will between m=510 and m=520? in symbols, what is p(510<m<520)?

- probability and statistics -
**PsyDAG**, Sunday, January 8, 2012 at 12:51pmZ = (score-mean)/SEm

SEm = SD/√n

Treat the new mean as a score.

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

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