Answer:
The margin of error = 19
Explanation:
The formula to calculate the margin of error is
ME = Critical value × Standard deviation
Since, the critical value isn't given and let us assume that the confidence interval is 95%, then the critical value is 1.96
Substituting the values in the formula, we get,
ME = 1.96 × 9.5
ME = 18.62
ME = 19
Thus, the margin of error is 19.