An operations manager has constructed a control chart with samples of size 1,000 and found lower and upper limits to be 0.014 and 0.026. She wants to check whether any of the four new samples of size 1,000 with number of defective units in Sample 1: 23, Sample 2: 15, Sample 3: 29, and Sample 4:13 are out of control. Based on this information, the out-of-control samples are: (Provide a detailed description or computation of why the given answers are the correct for a better understanding)