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What Are the Values Of μxˉ and σxˉ\mu _{\bar { x }} \text { and } \sigma _{\bar { x }}

question 36

Multiple Choice

What are the values of μxˉ and σxˉ\mu _{\bar { x }} \text { and } \sigma _{\bar { x }}
for the sampling distribution of the sample mean shown?
 What are the values of  \mu  _{\bar { x }} \text { and } \sigma  _{\bar { x }}    for the sampling distribution of the sample mean shown?   A)   \mu  _{\bar { x }} = 390 , \sigma  _{\bar { x }} = 40   B)   \mu  _{\bar { x }} = 390 , \sigma  _{\bar { x }} = 120   C)   \mu  _{\bar { x }}= 40 , \sigma  _{\bar { x }} = 390   D)   \mu _{\bar { x }} = 390 , \sigma _{\bar { x }}= 80


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