Are people moving away from having a traditional landline telephone in their homes? A recent report stated that 58% of U.S. households still have a landline telephone. Suppose a random sample of 200 homes was taken and a resident of the home was asked, "Do you have a traditional telephone in your place of residence?" Further suppose that of those asked, 120 said that they have a traditional telephone.

Reference: Ref 8-2

The 99% confidence interval estimate of the proportion of homes having a traditional landline telephone is:

(0.556, 0.644).

(0.521, 0.678).

(0.403, 0.603).

(0.511, 0.689).