Question 2·Medium·Inference from Sample Statistics and Margin of Error

Survey B gives a more precise estimate, and the two survey results are compatible because their plausible ranges overlap.

Survey B proves that exactly $49\%$ of all city residents favor the proposed change.

The $3$-percentage-point difference between the estimates proves that the surveys produced conflicting results.

Survey A's margin of error of $4$ percentage points means that $4\%$ of city residents were not included in Survey A.