need checking!

paris567

New member
Joined
Jan 5, 2021
Messages
27
question: Screen Shot 2021-01-05 at 8.13.21 PM.png
my answer: confidence level= 90%. Margin of Error= -4. Confidence interval = 74% to 82%
 
The definition of Confidence Interval is VERY SUBTLE. Are you SURE you have understood it correctly? Most do not.
 
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