Welcome to Westonci.ca, where finding answers to your questions is made simple by our community of experts. Discover a wealth of knowledge from experts across different disciplines on our comprehensive Q&A platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

Because the distribution of differences between means is based on estimated population variances, the distribution can be thought of as a normal (Z) distribution.
A. A t distribution.
B. Rectangular and symmetrical.
C. A random sample.