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In: Statistics and Probability

A random sample of 500 registered voters in Phoenix is ​​asked if they favor the use...

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?

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