Mathematics, 17.04.2020 03:58, autumn452392

The National Center for Education Statistics surveyed a random sample of 4400 college graduates about the lengths of time required to earn their bachelor’s degrees. The mean was 5.15 years and the standard deviation was 1.68 years respectively. Construct a 95% confidence interval for the mean time required to earn a bachelor’s degree by all college students. *

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The National Center for Education Statistics surveyed a random sample of 4400 college graduates abou...