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October 1, 2014

Homework Help: statistics

Posted by Anna on Tuesday, April 17, 2012 at 8:51pm.

An SRS of size n is taken from a large population whose distribution of income is extremely right-skewed and the mean income is calculated. Which of the following statements is false?
a) When n > 30, the sampling distribution of is approximately normal.
b) When n increases, the sample standard deviation decreases (s).
c) The standard deviation of the sampling distribution of is .
d) The standard error is the standard deviation of the sample (s).
e) When n increases, the standard deviation of the sampling distribution of decreases.

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