A popular theory is that presidential candidates have an
advantage if they are taller than their main opponents. Listed are
heights​ (in centimeters) of randomly selected presidents along
with the heights of their main opponents. Complete parts​ (a) and​
(b) below. Height left parenthesis cm right parenthesis of
PresidentHeight (cm) of President 193 187 184 177 200 175 Height
left parenthesis cm right parenthesis of Main OpponentHeight (cm)
of Main Opponent 181 185 174 174 196 181 Construct the confidence
interval that could be used for the hypothesis test described in
part​ (a). What feature of the confidence interval leads to the
same conclusion reached in part​ (a)? What is the confidence
interval?