Suppose that 42% of Americans are obese. A) If 100 people are randomly selected, what is the probability that more than 70% are obese? B) If 400 people are randomly selected, what is the probability that less than 30% are obese? C) A USA Today Poll asked a random sample of 1000 adults what they do with the milk in the bowl after they have eaten the cereal. 70% said they drink it. What is the 95% confidence interval for the population proportion? .