Alawyer 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. place you lower limit in the first blank.

Step-by-step explanation:

Given : Significance level :

Sample size : n=45

Critical value :

Sample mean :

Standard deviation :

The confidence interval for population mean is given by :-

Hence, the 95% confidence interval estimate for the average number of years served by all Supreme Court justices is

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step-by-step explanation:

answer:

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