Question
Asked Jan 27, 2020
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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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Expert Answer

Step 1

a.

Identify the difference between the assumptions of pooled t-test and nonpooled t-test.

The difference is the population standard deviation of the pooled t-test might be equal whereas nonpooled t-test does not require population standard deviation to be equal.

Step 2

b.

The reason for the importance of the assumption of the independent samples:

It is more essential to satisfy the a...

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