Exhibit 20

Multiple Choice

Exhibit 20.12.A magician has a coin that may or not be fair.The results of 30 flips of the coin are: H H T H T H H T H H T H H T H T H H H T T T T T H H H H H T. Refer to Exhibit 20.12.To determine if the coin is fair using the Wald-Wolfowitz runs test,the competing hypotheses are:

A)
B)
C)
D)