Question: 4. (r 1)(c 1), where r is the number of rows and c the number of columns? 1. The observations from the two

4. (r − 1)(c − 1), where r is the number of rows and c the number of columns?

1. The observations from the two samples must be independent.
2. The number of groups needs to be two.
3. Two samples are randomly selected from two populations.
4. The two samples have equal variances.

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