Answer
1. The mean of $\bar{x}\ $, $\mu$ _${\bar{x}}$, is equal to the mean of the population , $\mu$ .
2. The standard deviation of $\bar{x}\ $,σ_ $\bar{x}\ $, is equal to $ σ/ \sqrt n $, assuming n/N $\leq$ .05.
Work Step by Step
1. The mean of $\bar{x}\ $, $\mu$ _${\bar{x}}$, is equal to the mean of the population , $\mu$ .
2. The standard deviation of $\bar{x}\ $,σ_ $\bar{x}\ $, is equal to $ σ/ \sqrt n $, assuming n/N $\leq$ .05.