A marketing representative for Under Armour tracked a sample of 1,500 Under Armour website visitors to see whether they visited the webpage for a new line of shoes. Of these 1,500 visitors, 1,250 visited. The marketing representative wants to be very certain that the webpage for the new shoe line had sufficient traffic, that is at least 80% of Under Armour website visitors clicked on the link for the new shoe line. To get this the rep determined to generate a 99.9% confidence interval for the sample proportion.

1. What is the Margin of Error for this 99.9% confidence interval?
2. What is the confidence interval? Make sure you include both the lower and upper limits of the interval.
3. Can the rep say that more than 80% of visitors to the Under Armour website clicked on the link for the new line of shoes? Why?