1. Refer to the chapter-opening example. Estimate with 95% confidence the number of Americans 18 to 49 years old who were tuned to the American Idol. 2. Is there sufficient evidence to infer that the...

1. Refer to the chapter-opening example. Estimate with 95% confidence the number of Americans 18 to 49 years old who were tuned to the American Idol.

2. Is there sufficient evidence to infer that the proportion of White Americans has decreased since the 2010 census (RACE: 1 = White)?