Suppose you randomly select 4 observations from a population with μ = 7 and σ =...
Suppose you randomly select 4 observations from a population with μ = 7 and σ = 2 . You find a sample mean x ̅ = 9 . The sampling error is _____.
Group of answer choices
1
2
-2
unknown
Homework Answers
solution
Solution :
Given that ,
mean = 
= 7
standard deviation = 
= 2
x=9
n = 4
sampling error= /
n = 2 /
4=1
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