1. Sam was studying birth weights of infants in Somalia. He took an SRS (simple random sample) of 100 births and calculated a sample mean birth weight of x-bar = 3.2kg. The sample data was slightly skewed with a few outliers. He is considering using his data to construct a confidence interval for the mean birth weight in Somalia. What conditions for constructing a t interval have been met? (select all that apply)

A.The data is a random sample from the population of interest.

B.x > 30, with only a few outliers

C.x

D.the data are perfectly normal, and symmetrical

2.Here are two different samples drawn from two different populations. Which sample satisfies the normal condition for constructing a t interval?

\f