Asked by Cookie
For a population with a mean of μ 70 and a standard
deviation of 20, how much error, on average,
would you expect between the sample mean (M) and
the population mean for each of the following sample
sizes?
a. n 4 scores
b. n 16 scores
c. n 25 scores
deviation of 20, how much error, on average,
would you expect between the sample mean (M) and
the population mean for each of the following sample
sizes?
a. n 4 scores
b. n 16 scores
c. n 25 scores
Answers
Answered by
PsyDAG
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/probability related to the Z scores.
SEm = SD/√n
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.
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