Interval Estimation - Confidence interval for the mean of normal population

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Interval Estimation - Confidence interval for the mean of normal population
for large and small samples, when sigma the population standard deviation is known and unknown
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Show that by an example of each case where the estimate
a) NOT UNBIASED BUT NOT CONSISTENT
b) UNBIASED BUT NOT CONSISTENT
2)derive the confidence interval for the proportion of a Binomial population
3) How do you test the equality of variances of two normal populations?
4) Derive the maximum likelihood estimate of the parameter of Normal population
5)Examine whether f(x) = (1+theeta)x^theeta, 0<x<1 admits a maximum variance of any unbiased estimator of theeta from this population
6) obtain the maximum likelihood estimates & moment estimates of parameter of normal distribution

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