In a city of over 1,000,000 residents, 14% of the residents are senior citizens. In a simple random sample of 1200 residents, there is about a 95% chance that the percent of senior citizens is in the interval [pick the best option; even if you can provide a sharper answer than you see in the choices, please just pick the best among the options a-d]

9% to 19%
10% to 18%
11% to 17%
12% to 16%
13% to 15%

Question

In a city of over 1,000,000 residents, 14% of the residents are senior citizens. In a simple random sample of 1200 residents, there is about a 95% chance that the percent of senior citizens is in the interval [pick the best option; even if you can provide a sharper answer than you see in the choices, please just pick the best among the options a-d]


9% to 19%
10% to 18%
11% to 17%
12% to 16%
13% to 15%

anonymous · Answer

find 14% of the population.then find 95% of the sample .

loser66 · Answer

what happen? http://openstudy.com/study#/updates/518f5fb1e4b0cf6dd8f470ce exactly same

anonymous · Answer

12 to 16 percent