1. In 2015 the Census Bureau reported the poverty rate was 13.5%. A researcher would like to know if that has decreased in the past 4 years. He randomly selects 1100 people living in the U.S. and determines that 119 were living in poverty. Use a 0.05 significance level to determine if the poverty rate has decreased.

a. What are the null and alternative hypotheses?

b. Check the assumptions and conditions.

c. What are the test statistics (z-stat) and p-value?

d. What is your decision?

e. Write a statement that summarizes your decision.