Answer
Mariya’s interval is wrong. The point of estimate $p̂$ does not lie in the center of the confidence interval.
Work Step by Step
The point of estimate $p̂$ must be in the center of the confidence interval. That is:
$p̂=\frac{lower~bound+upper~bound}{2}$
Jaime’s interval:
$\frac{lower~bound+upper~bound}{2}=\frac{0.097+0.163}{2}=0.13=p̂$
Mariya’s interval:
$\frac{lower~bound+upper~bound}{2}=\frac{0.117+0.173}{2}=0.145\ne p̂$
