Question: An educational researcher sought to estimate the average number of
An educational researcher sought to estimate the average number of close friends that students on a particular campus made during their first year of school. Questioning a random sample of 50 students completing their freshman year, he finds a sample mean of 3 close friends and a sample standard deviation of 1. Construct a 95% confidence interval to estimate the mean number of close friends made by the population of college students during their first year on campus.
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