1. 

   jaffar New Member

   a confidence interval for a population mean has a margin of error of 0.081

    

   jaffar, Nov 12, 2016

   #1
   
   
2. 

   math_celebrity Administrator Staff Member

   Margin of error = Interval Size/2
   0.081 = Interval Size/2
   
   Cross Multiply:
   Interval Size = 0.081 * 2
   Interval Size = 0.162

    

   math_celebrity, Nov 13, 2016

   #2
   
   

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