in a population with N=6 the values of y are 8,3,1,11,4,and 7. Calculate the sample mean y bar for all possible simple random samples of size 2. verify that y bar is an unbiased estimate of Y bar

in a population with N=6 the values of y are 8,3,1,11,4,and 7. Calculate the sample mean y bar for all possible simple random samples of size 2. verify that y bar is an unbiased estimate of Y bar

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