question 1: a healine...? question 2: several years ago..?

A headline read, "More Than Half of Americans Say Federal Taxes Too High." The headline was based on a random sample of 1235 adult Americans in which 638 stated the amount of federal tax they have to pay is too high. Is this an accurate headline? Assume the a = 0.05 level of significance Identify the null and alternative hypotheses for this test. O A. Ho: p 0.50 O C. Ho P= 0.50 H1: P = 0.50 H1: p= 0.50 H1 p 0.50 Find the test statistic for this hypothesis test. z= (Round to two decimal places as needed.) Determine the P-value for this hypothesis test. P-value = (Round to three decimal places as needed.) Question 1 P-value =(Round to three decimal places as needed.) State the conclusion for this hypothesis test. | Ho. There sufficient evidence at the a = 0.05 level of significance to conclude that of Americans say that federal taxes are too high. Several years ago, 49% of parents with children in grades K-12 were satisfied with the quality of education the students receive. A recent poll found that 468 of 1,075 parents with children in grades K-12 were satisfied with the quality of education the students receive. Construct a 99% confidence interval to assess whether this represents evidence that parents' attitudes toward the quality of education have changed. Click the icon to view the Confidence Interval Critical Value table What are the null and alternative hypotheses? Ho: p v versus H1: P V (Type integers or decimals. Do not round.) Find the 99% confidence interval. The lower bound is The upper bound is (Round to three decimal places as needed.) Question 2 What is the correct conclusion? O A. Since the interval does not contain the proportion stated in the null hypothesis, there is insufficient evidence that parents' attitudes toward the quality of education have changed O B. Since the interval contains the proportion stated in the null hypothesis, there is insufficient evidence that parents' attitudes toward the quality of education have changed O C. Since the interval does not contain the proportion stated in the null hypothesis, there is sufficient evidence that parents' attitudes toward the quality of education have changed O D. Since the interval contains the proportion stated in the null hypothesis, there is sufficient evidence that parents' attitudes toward the quality of education have changed