Question #2955

1.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 estimate for the average number of years served by all Supreme Court justices? Place your limits, rounded to 1 decimal place, in the blanks. When entering your answer into the Final Exam Shell do not use any labels or symbols. Simply provide the numerical values. For example, 12.3 would be a legitimate entry. <br>
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Lower limit (first blank) = _ 11.7 _________, Upper limit (second blank) = ____15.9_______.

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