Homework Answers
Answer:
Given that:
You repeatedly draw size-n samples from a r.v. that has
a
distribution where n is pretty big. It is known that this r.v. has
a mean of v and a variance of 2v. What is the expected value,
variance, and approximate distribution of the sample
mean?
The mean and standard deviation .
The sample mean is the same as the mean , v, and sample variance is 2v/n
The distribution is approximately N(v,2v/n)
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(ii) Notice that the population mean here is µ = E(X1) = 1/λ ,
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sample standard deviation s = 10, sample average
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