2) In a July 2020 poll of 1,007 Americans, Gallup found that only 13% are "satisfied with the way things are going in the United States at this time". The previous poll by Gallup in May 2020 showed a proportion of 20%. (https://news.gallup.com/poll/316736/satisfaction-lowest-nine-years.aspx Links to an external site.) Is the new July proportion "statistically tied" with that of May, or is it statistically significantly smaller? (Assume the sample sizes were equal) Justify your answer with the help of a two-sample test, the z-stat, and the p-value