A sample of 5 clusters is to be taken from a population with N = 30 clusters and M = 300 elements in the population. The values of Mi and Xi for each cluster are shown below. 
a.Determine the point estimate of the population mean.
b.Determine the standard error of the mean.
c.Develop a 95% confidence interval for the population mean.
d.Determine the point estimator of the population total.
e.Approximate a 95% confidence interval estimate of the population total.
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