You can use the formula for the margin error and the z-score

Solved Step by Step With Explanation- Confidence Level

Questions

The confidence level of this interval is Round to twee decimal places as needed)

Answer

Where:

Z is the Z-score corresponding to the desired confidence level.

Sample proportion (p) = 56 / 198 = 0.2828 (rounded to four decimal places)

Sample size (n) = 198

0.046 = 1.96 * sqrt(0.2043313131 / 198)

0.046 = 1.96 * 0.0202098313