To Estimate ____________________ When the Population Size N Is Small,the $\bar { x } \pm t _ { a / 2 } \cdot \frac { s } { \sqrt { n } } \sqrt { \frac { N - n } { N - 1 } }$

Essay

To estimate ____________________ when the population size N is small,the confidence interval estimator is $\bar { x } \pm t _ { a / 2 } \cdot \frac { s } { \sqrt { n } } \sqrt { \frac { N - n } { N - 1 } }$ .