A population of final test scores for all Sociology 301 classes has a mean of 66 and a standard deviation of 15. If all possible samples of 25 scores are drawn randomly from this population, with replacement, the standard error of the mean

a. is 1/5 the size of s.
b. is equal to 15/25 or 3/5.
c. is 15.
d. should be zero.
e. should equal the most frequently occurring score in the random sampling distribution of means.


Ans: a

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