Hello I need a little help on this one.

Each gumdrop in two bags of Sathers Gum Drops was weighed (to the nearest .001 g) on a sensitive Mettler PE 360 Delta Range scale. After removing one outlier (to improve normality), there were 84 gum drops in the sample, yielding an overall meanand a pooled standard deviations= .2208 g.

Use these sample statistics to construct control limits for anchart, using a subgroup sizen= 6. What is LCL?

14 Samples of Gum Drop Weights (subgroup size is n = 6) Data arranged in rows: Sample x1 x2 x3 x4 x5 x6 Mean 11.741 11.975 11.985 12.163 12.317 12.032 12.036 12.206 11.970 12.179 12 182 11.756 11.975 12.045 12.041 12.120 11.855 12.036 11.750 11.870 11.945 12.002 11.800 12.092 12.017 12.340 12.488 12.123 12.305 12.134 11.949 12.050 12.246 11.839 12.087 11.862 12.049 12.105 11.894 11.995 11.722 11.938 11.979 12.124 12.171 12.093 12.224 11.965 12.093 8 11.941 11.855 11.587 11.574 11.752 12.345 11.842 9 12.297 12.078 12.137 11.869 11.609 11.732 11.954 10 11.677 11.879 11.926 11.852 11.781 11.932 11.841 11 12.113 12.129 12.156 12 284 12.207 12.247 12 189 12 12.510 11.904 11.675 11.880 12.086 12.458 12.086 13 12.193 11.975 12.173 11.635 11.549 11.744 11.878 14 11.880 11.784 11.696 11.804 11.823 11.693 11.780