A market research firm is hired to estimate the percent of adults living in a large city who have cell phones. Five hund
Posted: Wed Jul 06, 2022 12:16 pm
A market research firm is hired to estimate the percent ofadults living in a large city who have cell phones. Five hundredrandomly selected adult residents in this city are surveyed todetermine whether they have cell phones. Of the 500 peoplesurveyed, 421 responded "yes, they own cell phones."
Using a 95% confidence level, compute a confidence intervalestimate for the true proportion of adult residents of this citywho have cell phones.
1. Work on the given problem.
2. Write or type up your solutions completely, using propernotation, You may write it on paper and take a photo of yoursolution if you find this easier. Be sure toinclude all four steps learned in theassignments.
Using a 95% confidence level, compute a confidence intervalestimate for the true proportion of adult residents of this citywho have cell phones.
1. Work on the given problem.
2. Write or type up your solutions completely, using propernotation, You may write it on paper and take a photo of yoursolution if you find this easier. Be sure toinclude all four steps learned in theassignments.