It is known that the average American spends $121 per month on eating out. Which of the following needs to be satisfied in order to be able to use the Central Limit Theorem to describe the sampling...

It is known that the average American spends $121 per month on eating out. Which of the following needs to be satisfied in order to be able to use the Central Limit Theorem to describe the sampling distribution of the average amount of money Americans spend eating out?

1. The sample needs to be representative of all Americans.


2. The amount of money Americans spend eating out needs to be normally distributed.


3. The sample size should not be less than 30.


4. The expected numbers of those who do and do not eat out needs to both be at least 5.

Answer Choices:

• 1 and 2


• 1 and 3


• 1, 2, and 3


• 1, 2, 3, and 4


• 1 and either 2 or 3