In the parametric case of means for two independent samples, the hypotheses take which form?

A) H0:?1 = ?2
H1:?1 ? ?2
B) H0:?12 = ?22
H1:?12 ? ?22
C) H0:? ? 4.0
H1:? > 4.0
D) H0: ?1 = ?2
H1: ?1 ? ?2

A

Business

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