(a) If we have a distribution of x values that is more
or less mound-shaped and somewhat symmetric, what is the sample
size n needed to claim that the distribution of sample
means x from random samples of that size is approximately
(b) If the original distribution of x values is known to be normal, do we need to make any restriction about sample size in order to claim that the distribution of sample means x taken from random samples of a given size is normal?
TOPIC:Normality assumption of the distribution of the sample mean.
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