Question $1$

I understand that the problem below is used to answer the next $5$ MC questions. Please click True. A bank wanted to measure if the time a customer spends at a drive$-$up window was within control. It took four samples of five observations each and recorded the time in minutes $($see table$).$ Use three sigma control limits to find if the process is under statistical control.

Note: Round your answer to one decimal point

$\backslash$table$[[,$Time$2,$Time$3,$Time$4,$Time$5],[,,4\mathrm{.}2,4\mathrm{.}3,4\mathrm{.}3],[,,,4\mathrm{.}7,],[3,4\mathrm{.}5,,4\mathrm{.}4,4\mathrm{.}6],[4,4\mathrm{.}5,4\mathrm{.}6,4\mathrm{.}8,4\mathrm{.}9]]$

$($A$)$ True