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Conditions for a t interval for a mean


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¯=3.2 kg. 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?
Choose all answers that apply: