A 95% confidence interval for the proportion of U.S. adults who subscribe to some sort of...
A 95% confidence interval for the proportion of U.S. adults who subscribe to some sort of streaming service is (0.685, 0.745). The margin of error for this confidence interval is:
Homework Answers
Solution :
Point estimate = 
= (Lower confidence interval + Upper confidence interval ) / 2
Point estimate =
= (0.685+ 0.745) / 2=0.715
Margin of error = E = Upper confidence interval -
= 0.745-0.715=0.03
Margin of error = E =0.03
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