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January 31, 2015

January 31, 2015

Posted by **Daniel** on Saturday, October 15, 2011 at 4:04pm.

a. What is the probability of randomly drawing a single score between 100 and 106, p(100 < X < 106)?

b. What is the probability of drawing a random sample of 9 observations with a mean between 100 and 106, p(100 < M < 106)?

c. What is the probability of drawing a random sample of 36 observations with a mean between 100 and 106, p(100 < M < 106)?

- statistics -
**PsyDAG**, Sunday, October 16, 2011 at 11:08pma. Z = (score-mean)/SD

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 calculated.

b, c. Z = (score-mean)/SEm

SEm = SD/√n

Use the same table.

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