Please help me fill out the xbar and standard deviation

A v Styles Paragraph CONTROL CHARTS FOR VARIABLES, CHAPTER 6 (25 POINTS] 1. [25 points] Control charts for X-bar and s are to be established on the Brinell hardness of tool steel in kilograms per square millimeter. Data for subgroup sizes of 7 are shown below. Determine the trial central line and control limits for the X-bar and s charts. Assume that the out-of-control points have assignable causes. Calculate the revised limits and central line. Out-of-Control Points Subgroup Subgroup X-bar X-bar StDev Size 557.57 34.42 7 2 573.57 23.06 3 544.29 26.32 4 547.14 13.38 5 557.57 12.51 X-bar StDev 6 561.00 29.78 UCL trial 7 554.00 22.96 CL trial 8 536.43 23.16 LCL trial 9 540.86 34.51 10 532. 14 26.44 11 551.86 21.96 UCL revised 12 559.71 34.10 CL revised 13 611.29 65.49 LCL revised 14 548.71 21.51 15 548.71 32.22 sigma_0= 16 571.86 28.60 17 556.43 27.81 18 557.86 16.08 19 542.86 40.43 20 529.29 23.53 21 530.86 24.55 22 563.29 17.64 23 547.43 25.71 24 541.43 29.62 25 550.71 24.80 sum 13816.86 680.60 average 552.67 27.22 range 82.00 52.98 stdev 16.83 10.40 restigate