Wednesday

April 23, 2014

April 23, 2014

Posted by **John** on Sunday, October 27, 2013 at 6:23pm.

a. What is the probability that your sample mean is between 12 and 13?

b. What is the probability that a single observation is between 12 and 13?

c. What is the probability that all of your observations are between 12 and 13?

- Probability (Partial) -
**PsyDAG**, Monday, October 28, 2013 at 1:33pma. Z = (score-mean)/SEm

SEm = SD/√n

SD = √variance

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

b. Z = (score-mean)/SD

Use same table.

c. I'm not sure about this one.

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