Do political \"attack ads\" work? A congressional candidate who currently has the support of only 44% of the voters runs a television spot that aggressively attacks the character of his opponent. To determine whether the advertisement changes his support level, his pollsters survey an SRS of 450 voters and find that 186 support the candidate. This produces a 95% confidence interval for the proportion of voters who support him of (0.368, 0.459). a) Suppose his pollsters conducted a test of H 0: p = 0-44 against the alternative H a: p at 0.44, using (I, = 0.05. How could the confidence interval be used to determine whether this test would reject or fail to reject the null hypothesis? Explain your reasoning. (b) Find the Pvalue for the test described in part (a), and explain What it measures in the context of the