In the random sample of 1216 U.S. adults, 863 favor by using mandatory testing to estimate how well schools are educating students. In another random sample of 1002 U.S. adults taken nine years ago, 823 favored using mandatory testing to estimate how well schools are educating students. At alpha =0.05, can you support claim that proportion of U.S. adults who favor mandatory testing to estimate how well schools are teaching students is less than it was nine years ago?