Use the following information to answer questions 13-15: Apple Quaker nut bar is produced at a highly automated facility. One of the quality control factors is the weight of each bar. Samples of 8 bars are taken regularly and adjustments are made based on the outcome of quality control process. Average weights and ranges of the latest 10 samples are reported as following: Average weight Average Sample (gram) Range 49 4 2 54 5 N 54 7 53 5 5 54 7 6 46 3 8 49 6 9 47 10 46 13) What is the lower control limit of X chart? A. 48.0 to under 48.5 B. 50.5 to under $1 C. $1 to under $1.5 D. 46.5 to under 47 14) What is the upper control limit of R chart? A. Less than 0.74 B. 9.5 to under 10.0 C. 10.0 to under 10.5 D. 5.0 to under S.5 15) What is the status of production process based on this report? A. Both R and X charts indicate that the process is in statistical control Both R and X charts indicate that the process is out of statistical control C. R chart indicates that process is out of statistical control but not & chart D. X chart indicates that process is out of statistical control but not R chart