Confidence Intervals
Hypothesis Testing
$H_o$: 0
$H_a$: μ₁ - μ₂ < > $D_o$
$n_1$ =     x̄₁p̄₁ =     =
$n_2$ =     x̄₂ =     σ₂ =
$\text{Confidence Level:}$ %
$\text{Level of Significance:}$ $\alpha$ =
Example 1Example 2
Example 1Example 2