service time for Restaurant $x$ at dinner; then do the same for Restaurant $Y.$ Compare the results.

Click the icon to view the data on drive$-$through service times.

Restaurant Drive$-$Through Service Times

Construct a $99\%$ confidence interval of the mean drive$-$through service times at dinner for Restaurant X$.$

$($Round to one decimal place as needed.$)$

Construct a $99\%$ confidence interval of the mean drive$-$through service times at dinner for Restaurant Y$.$

$($Round to one decimal place as needed.$)$

Compare the results.

B$.$ The confidence interval estimates for the two restaurants do not overlap, so it appears that Restaurant $x$ has a faster mean service time than Restaurant $Y.$

D$.$ The confidence interval estimates for the two restaurants overlap, so it appears that Restaurant $x$ has a faster mean service time than Restaurant $Y.$