SOLUTION: The daily salaries of substitute teachers for 8 local school districts are shown below. Find the
95% confidence interval for the mean of the salaries.
$60 $56 $60 $55 $70 $55 $60
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Probability-and-statistics
-> SOLUTION: The daily salaries of substitute teachers for 8 local school districts are shown below. Find the
95% confidence interval for the mean of the salaries.
$60 $56 $60 $55 $70 $55 $60
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Question 1155771: The daily salaries of substitute teachers for 8 local school districts are shown below. Find the
95% confidence interval for the mean of the salaries.
$60 $56 $60 $55 $70 $55 $60 $55 Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! mean=58.875
s=5.08
t 0.975, df=7 = 2.365.
half-interval is t s/sqrt(n)=2.365*5.08/sqrt(8)=4.25
That is added and subtracted from the mean to get the interval
($54.625, $63.125)
