Question: Exit-poll predictions: According to an exit poll in the 2006 Virginia senatorial election, 50.1% of the sample of size 2011 reported voting for James Webb. Is this enough evidence to predict who won? Test that population proportion who voted for Webb was 0.50 against the alternative that it difference from 0.50. Answer by:

a. Identifying the variable and parameters and defining its notation

b. Stating the hypotheses and checking and interpreting it (The test statistic equals 0.09)

c. Explaining how to make a decision for the significant level of 0.05