A company that makes bolts and rivets used in assembling airplanes monitors the quality of its bolts by measuring the torque required to unloosen a bolt. When Installed correctly, the bolts must be tight enough to withstand heavy vibration during nights but must be loose enough so that they can be removed periodically for maintenance. The following x-bar chart monitors the amount of torque required to loosen subgroups of 8 bats that have been selected each hour for besting x-bir chant 13 15 For a process such as thins to be in statistical control," only random patterns of points should appear on the control chart. The process Is "not in stabatical control" when any non-random patterns appear on the chart. Three commonly used tests of rules for signaling that a process may not be in statistics control Rule 1: One or mere points fall outside one of the chart's control units Rule 2: Nine points in a row are on the same side of the charts centerling Rule 3: Sbi points In a row are increasing (or decreasing). Using these three rules, idenary which (If any) of the rules gives an you: of control' signal, and indicate the subgroup number of which the signal is first given. Does the rule give an "cut |What is the subgroup of control signal? [Check number at which he the box that apples) sland is first vent IC No Yes 0 Na