A simple random sample is taken of 2,000 people in a city. These people are surveyed about their beliefs concerning the development of a new football stadium in the city, to be funded with an...

A simple random sample is taken of 2,000 people in a city. These people are surveyed about their beliefs concerning the development of a new football stadium in the city, to be funded with an additional sales tax over the next five years. Among the people surveyed, 1,287 support this plan.

Fill in the blanks: We estimate that  _____ % of all people in the city support the plan, and this estimate is likely to be off by about _____ %.