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Conditions for a t interval for a mean

AP.STATS: UNC‑4 (EU), UNC‑4.P (LO), UNC‑4.P.1 (EK)

Problem

Nolan 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, with, \bar, on top, equals, 3, point, 2, start text, space, k, g, end text. 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.
Which conditions for constructing a t interval have been met?
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