please help with part c

Cans of soup are supposed to weigh exactly 16oz Inspectors want to develop process control charts. They take eight samples of five boxes and weigh them. They obtain the following data: What is the upper 3-sigma control limit for the x-bar chart? (Round answer to 3 decimal ploces, es. 12.755.) Upper control limit (UCU) for the x-bar chart eTextbook and Media (b) What is the lower 3-sigma control limit for the x-bar chart? (Round answer to 3 decimal places, es. 12.755.) Lower control limit [LCL ) for the x-bar chart X Your answer is incorrect. What is the upper 3 -sigma control limit for the R-chart? (Round answer to 3 decimal places, es. 1.755.) Upper control limit (UCL) for the R-chart eTextbook and Media Attempts: 1 of 3 used