Sample Size Equation
$$ \text{Necessary Sample Size} = 2 * \left(\ \text{Z-Score} \ \right) * \left(\ \text{StdDev} \ \right) * \left(\ 1 - \text{StdDev} \ \right) * \frac{1}{\left(\ \text{Confidence Interval} \ \right)^2} $$
$$ \text{Necessary Sample Size} = 2 * \left(\ \text{Z-Score} \ \right) * \left(\ \text{StdDev} \ \right) * \left(\ 1 - \text{StdDev} \ \right) * \frac{1}{\left(\ \text{Confidence Interval} \ \right)^2} $$