9.99 NBA home court advantage In 1976–1977, the home team won 68.5% of all the games played. In 2002–03, it was 62.8%. Since then, the home team’s win percentage has fallen steadily to 53.7 in 2014–15 where 1230 games had been played during the regular season (www.espn.

com).Analyze the data to test whether the home team’s win percentage has significantly changed from 1976–77 to 2014–15 using (i) a significance test and (ii) a confidence interval. Which method is more informative? Why?