Mathematics, 18.12.2020 17:10, erinkiing
A simple random sample of 81 college students showed that the time it took to earn their bachelor's degree was 4.8 years and had a standard deviation of 2.2 years. Use a 0.05 significance level to test the claim that the mean time for all college students is greater than 4.5 years.
Answers: 3
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