SOLUTION: According to a national poll of 725 college students, 73% play video games more than 6 hours a week. Find the margin of error and the 95% confidence interval for the survey. Give

Algebra ->  Probability-and-statistics -> SOLUTION: According to a national poll of 725 college students, 73% play video games more than 6 hours a week. Find the margin of error and the 95% confidence interval for the survey. Give      Log On


   



Question 1083684: According to a national poll of 725 college students, 73% play video games more than 6 hours a week.
Find the margin of error and the 95% confidence interval for the survey. Give your answers as percentages rounded to the nearest tenth of a percent.
Find the margin of error-
The 95% confidence interval is from ___ to ____?

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
one can use 1.96*SE for the interval size
sqrt(.73*.27/725)=0.0165
interval size is 0.0323
(0.6977, 0.7623) or (69.8%, 76.2%)