9. A recent survey of college graduates found the mean time…
9. A recent survey of college graduates found the mean time to complete a bachelor’s degree was 4.6 years, with a standard deviation of 2.2 years. If the sample size of this survey was 34 students, construct a 95% confidence interval of the true mean length of time to complete a bachelor’s degree. Round the lower and upper bounds to the nearest hundredth.