If random samples,each with n = 9 scores,are selected from a normal population with µ = 80 and σ = 18,how much difference,on average,should there be between a sample mean and the population mean?
A)2 points
B)3 points
C)6 points
D)18 points

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The Answer of If random samples,each with n = 9 scores,are selected from a normal population with µ = 80 and σ = 18,how much difference,on average,should there be between a sample mean and the population mean?
A)2 points
B)3 points
C)6 points
D)18 points

If Random Samples,each with N = 9 Scores,are Selected from a Normal