A survey of 4,581 U.S. households that owned a mobile phone found that 58 percent are satisfied with the coverage of their cellular phone provider.
Assuming that this was a random sample, construct a 90 percent confidence interval for the true proportion of satisfied U.S. mobile phone owners. (Round intermediate calculations to 4 decimal places. Round your answers to 3 decimal places.)© BrainMass Inc. brainmass.com December 20, 2018, 7:41 am ad1c9bdddf
Step by step method for computing Confidence interval for proportion is given in the answer.