A random variable X has a normal population with a mean and a variance of 3.
Question:
A random variable X has a normal population with a mean μ and a variance of 3.
(a) If samples of 10 are taken from the population, sketch the distribution of the variance.
(b) Approximately what proportion of 10,000 samples, each with a sample size of 10, would have sample variances greater than 5.6?
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Related Book For 
Probability Statistics And Reliability For Engineers And Scientists
ISBN: 9781439809518
3rd Edition
Authors: Bilal M. Ayyub, Richard H. McCuen
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