3. Imagine an urn filled with white and black balls. You know that two-thirds of the balls are one color and one-third are the other, but you don't know which color predominates. One blindfolded
person plunges a hand into the urn and comes up with 3 black balls and 1 white ball. Another
uses both hands and comes up with 14 black balls and 10 white balls. Which sample provides
the more convincing evidence that the urn contains more black balls than white balls?
(a) the first, or 3:1 sample
(b) the second, or 14:10 sample
(C) they are equally convincing