In a random sample of 998 adults in the United States, 17.3% of the sample members indicated some measure of disagreement with this statement: Globalization is more than an economic trade system-instead it includes institutions and culture.
a. Test, at the 5% level, the null hypothesis that at least 25% of all U.S. adults would disagree with this statement.
b. Find the probability of rejecting the null hypothesis with a 5%-level test if, in fact, 20% of all U.S. adults would disagree with the statement.