A quality analyst wants to construct a sample mean and range chart for controlling a packaging process. Each day last week, he randomly selected four packages and weighed each. The data from that activity appear below. Find the lower and upper control limits of the R-control chart. A) 0 and 5.9 B) 0 and 6.4 C) 12.5 and 2.8 D) 12.5 and 2.6 E) 10.6 and 14.4 Type the letter (uppercase) of the answer here Is the central tendency of the process in control, why? A) No, because one or more sample means exceeded the control limits. B) Yes, because all sample means fall within the control limits. C) No, because one or more of the ranges exceeded the control limits. D) Yes, because all of the ranges fall within the control limits. E) There is not enough information to make a decision