=     $\sigma$ =     $n$ =
$N$ is     $N$ =
Example 1Example 2
Point Estimation
Example 1Example 2

Calculate Probability
$P($ $\bar{x}$ within $\pm$ of $\mu$ $)$   Solve
$P($ $\bar{p}$ within $\pm$ of $p$ $)$   Solve