1. In 2017, the Gapminder organization took a sample of 1005 American Adults. They asked them, "There are 2 billion children in the world today, ages 0 - 15 years old. How many children will there be in the year 2100, according to the United Nations? (2 billion, 3 billion, 4 billion)" The correct answer is 2 billion. Out of the sample, 100 answered it correctly. What is the population parameter? A. p = sample proportion of 1005 Americans who would state that there would be 2 billion children in the world in 2100 B. p = population proportion of Americans who would state that there would be 2 billion children in the world in 2100 C. phat = sample proportion of Americans who would state that there would be 2 billion children in the world in 2100 D. p = sample proportion of Americans who would state that there would be 2 billion children in the world in 2100

2. When would you typically choose the bootstrap confidence interval over a classical (mathematical) confidence interval? A. You don't have a sample of size 30. B. You don't have the required ten successes and ten failures. C. You don't have a random sample.