When Developing an Interval Estimate for the Difference Between Two

Multiple Choice

When developing an interval estimate for the difference between two population means with sample sizes of n₁ and n₂,

A) n₁ must be equal to n₂.
B) n₁ must be smaller than n₂.
C) n₁ must be larger than n₂.
D) n₁ and n₂ can be of different sizes.