9.43 In a random sample of 1,099 adults in a certain country, 21.3% 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 1% level, the null hypothesis that at least 25% of the country’s adults would disagree with this statement.

b. Find the probability of rejecting the null hypothesis with a 1%-level test if, in fact, 23% of all adults in the country would disagree with the statement.