A lawyer researched the average number of years served by 45 different justices on the Supreme Court. The average number of years served was 13.8 years with a standard deviation of 7.3 years. What is the 95% confidence interval for the average number of years served by all Supreme Court justices?   Question 6 options:   1)  (11.7,15.9)   2)  (11.8,15.8)   3)  (12.9,16.9)   4)  (12.5,17.3)

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