Two baseball fans are arguing over how good several baseball players are. For pitchers, Erica argues, the sign of goodness is having an ERA (earned run average) of 3.33 or less at a significance level of 0.05. Her friend Rosario believes that her favorite pitcher, Tim Hudson of the Braves, falls into Erica's "good" category. Based on Hudson's career record below, determine if Erica is correct.
1.State the appropriate pair of hypotheses.
2.State the decision rule using a 5% significance level.
3.Use Excel to find the p-value and interpret it.
Year Team ERA
1999 OAK 3.23
2000 OAK 4.14
2001 OAK 3.37
2002 OAK 2.98
2003 OAK 2.7
2004 OAK 3.53
2005 ATL 3.52
2006 ATL 4.86
2007 ATL 3.33
2008 ATL 3.17
2009 ATL 3.61
2010 ATL 3.28