A process that is assumed to be in control with limits of 85+ 2 had sample averages for the x-bar chart of the following: 87.1, 87, 87.2, 89, 90, 88.5, 89.5, and 88. Which of the following statement below are correct? Select one: a. None is correct b. Process mean is not in-control c. Not enough information to determine d. Process mean is in-control A manager wishes to build a control chart for a process. A total of five (05) samples are collected with six (06) observations within each sample. The sample means (X-bar) are; 15.36, 14.61,16.36,20.28, and 15.77 respectively. Also, the corresponding ranges are; 10.79, 8.37, 2.818.17, and 3.31 respectively. The lower and upper control limits of the x- bar chart are respectively Select one: a. 16.55, 11.47 b. 13.27, 19.69 c. 18.55, 13.47 d. None is correct e. 12.60, 20.36 A company has been able to produce 240 crates by 5 workers in an 8-hour day. If the company hires additional skilled worker to improve productivity, it would yield to 270 crates. However, the total required time would increase by 5 labor hours because of the new hire. What would be the impact on productivity, measured in crates/labor-hours, if the new worker is hired. Round to 2 decimal places Select one: 3. None of these b.4.75% 0.0% d. -5,12% e. 5.1%