Below is a control chart for a product with quality standards - 7.5 and o Sub group Sample 1 Sample 2 Sample 3 X Bar R 4 3 10 8 6 4 8 11 11 4 If the X and Rgraphs are drawn a) X upper control limit= (type integer) b) X center line = c)X lower control limit= (type integer) d) R upper control limit= (type in three decimal format such as a bcd) e) R center line (type in three decimal format such as abcd) R lower control limit= 234 5 6 53VO 7 8 9 9 10 TATTHTLUSE 10 10 TONTOTHOOG 12 10 10 0.866