3 A random sample of 500 registered voters in Phoenix is asked if they favor the use of oxygenated fuels year-round to reduce air pollution. If more than 320 voters respond positively, we will conclude that at least 60% of the voters favor the use of these fuels. Find the probability of type I error if exactly 60% of the voters favor the use of these fuels. (a) 0.000 (b) 0.034 p. 50% 3% 064 (c) 0.866 H.: P 0.6 Sd= 6(1-06) 500 OL19