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Random samples of size n were selected from a normal population with the means and variances given here. n = 100, = 9 , 2
Random samples of sizenwere selected from anormalpopulation with the means and variances given here.
n= 100,=9,2= 4
Describe the shape of the sampling distribution of the sample mean from the choices below:
The distribution is bimodal.
The distribution is uniform.
The distribution is skewed right.
The distribution is skewed left.
The distribution is normal.
Also, find the mean and standard error of the sampling distribution of the sample mean.
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