In a Two-Sample Test for Differences in Means, the Hypotheses $H_{0}: \mu_{1}-\mu_{2}\{\geq, \leq$

Multiple Choice

In a two-sample test for differences in means, the hypotheses are of the form:

A) $H_{0}: \mu_{1}-\mu_{2}\{\geq, \leq$ , or $=\} 0$
$H_{1}: \mu_{1}-\mu_{2}\{>,<$ , or $=\} 0$
B) $H_{0}: \mu_{1}-\mu_{2}\{\geq, \leq$ , or $=\} 0$
$H_{1}: \mu_{1}-\mu_{2}\{>,<$ , or $\neq\} 0$
C) $H_{0}: \mu 1-\mu 2\{\geq, \leq$ , or $\neq\} 0$
$H_{1}: \mu_{1}-\mu_{2}\left\{>_{1}<\right.$ , or $\left.=\right\} 0$
D) $H_{0}: \mu 1-\mu 2\{>,<$ , or $=\} 0$
$H_{1}: \mu 1-\mu 2\{\leq, \geq$ , or $\neq\} 0$