In: Statistics and Probability
A random sample of 500 registered voters in Phoenix is
asked if they favor the use of
oxygenated fuels throughout the year to reduce pollution. If more
than 315 voters
respond positively, we conclude that at least 60% of the voters
favor the use of these
fuels.
a) Find the type I error probability if exactly 60% of the voters
favor the use of
these fuels.
b) What is the probability of error type II β if 75% of the voters
favor this action?