The central limit theorem says that when a simple random sample of size n is drawn...
The central limit theorem says that when a simple random sample of size n is drawn from any population with mean μ and standard deviation σ, then when n is sufficiently large
- the distribution of the sample mean is approximately Normal.
- the standard deviation of the sample mean is σ2nσ2n.
- the distribution of the sample mean is exactly Normal.
- the distribution of the population is approximately Normal.
Homework Answers
Sol:
n>30(large sample
when n is suffciently large,sample follows approximately normal distribution ,irrespective of the parent population whether it follows normal distribution
with sample mean=xbar=mu
sample standard deviation=sigma/sqrt(n)
ANSWER"
the distribution of the sample mean is approximately Normal.
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