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March 3, 2015

March 3, 2015

Posted by **anonymous** on Thursday, December 6, 2012 at 2:22pm.

a. What is the probability that the weight of a randomly selected bag of flour falls between 94 and 106 pounds?

b. if samples of 36 bags are taken, what is the standard error of the mean?

c.what is the probability that a sample of 36 bags of flour has a mean weight between 94 and 106?

- statistic -
**PsyDAG**, Saturday, December 8, 2012 at 11:54ama. Z = (score-mean)/SD

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 scores.

b. SEm = SD/√n

c. Z = (score-mean)/SEm

Use same table.

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