The Mean of the Sample Average $\bar { Y }$ $E ( \bar { Y } )$

question 43

Multiple Choice

The mean of the sample average $\bar { Y }$ , $E ( \bar { Y } )$ , is

• A) \(\frac { 1 } { n } \mu _ { \gamma }\)
• B) \(\mu_y\)
• C) \(\frac { \mu _ { y } } { \sqrt { n } }\)
• D) \(\frac { \sigma _ { y } } { \mu _ { y } }\) for n > 30.

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