4.29. An exit poll of 2293 voters in the 2006 Ohio Senatorial election indicated that 44% voted for the Republican candidate, Mike DeWine, and 56% voted for the Democratic candidate, Sherrod Brown.

(a) If actually 50% of the population voted for DeWine, find the standard error ofthe sample proportion voting for him, for this exit poll.

(Recall from Example 4.8 on page 91 that the population standard deviation is 0.50.)

(b) If actually 50% of the population voted for DeWine, would it have been surprising to obtain the results in this exit poll? Why?

(c) Based on your answer in (b), would you be willing to predict the outcome ofthis election?

Explain.