Question: For Example 1 on page 431, we used df = smaller of n1 - 1 and n2 - 1, we got df = 11, and

For Example 1 on page 431, we used df = smaller of n1 - 1 and n2 - 1, we got df = 11, and the corresponding critical values are t = ( 2.201. If we calculate df using Formula 9-1, we get df = 19.063, and the corresponding critical values are (2.093. How is using the critical values of t = (2.201 more "conservative" than using the critical values of ( 2.093?

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