Problem 1:

It was reported in the New York times that 42% of the apartments in Brooklyn have 2 television.We randomly sampled 80 homes and found that 35% of them had 2 televisions.Answer the following questions:

1. What is the Standard Error?
2. What is the probability that more than 42% of the homes in our sample would have 2 televisions?

Problem 2

We measured the length of the trunk on 82 elephants and found that the mean length was 6 feet with a standard deviation of 1.3 feet.Answer the following questions:

1. What is the Standard Error?
2. What percent of our sample is greater than 6.8 feet in length?