Question: Regarding the pooled and nonpooled t-procedures, a. what is the difference in assumptions between the two procedures? b. how important is the assumption of independent

Regarding the pooled and nonpooled t-procedures,

a. what is the difference in assumptions between the two procedures?

b. how important is the assumption of independent simple random samples for these procedures?

c. how important is the normality assumption for these procedures?

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