If my point estimate is equal to 89.7 and my confidence interval is 88.7 to 90.7, then what is my margin of error?
Solution :
= (Lower confidence interval + Upper confidence interval ) / 2
Sample mean = = (88.7+90.7) / 2=89.7
Margin of error = E = Upper confidence interval - = 90.7-89.7=1
Margin of error = E =1
If my point estimate is equal to 89.7 and my confidence interval is 88.7 to 90.7,...
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