Let X1, X2, ...,X100 be 100 independent observations from a distribution X which is not normally distributed. Suppose i

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Let X1, X2, ...,X100 be 100
independent observations from a distribution X which is not
normally distributed. Suppose it is known that the mean of this
distribution X is 26 and the standard deviation is 6. What can we
say about the sample mean x̄?
a.
x̄ = 2.6
b.
x̄ has an approximately normal distribution with
mean=26 and standard deviation=0.6
c.
x̄ has an approximately normal distribution with mean=26
and standard deviation=6
d.
x̄ cannot be approximated with a normal distribution since X is
not normal
e.
None of the other answers