help with part b

a. Using these dota, set up a c.chart with z=3 The UCl cequais 27.32 and the LCL e equals 158 (Enter your retponses roonded to teo decmalplaces) b. Suppose that the next tive samples had 17,15,11,15, and 12 wegular tives What do you concude? A. Al of the sample points are wilhin the control lends, so the process is not in coetrol 8. A lears coe of the sample points is tew than the lower cocwol tima, so the process is not in contiol C. At ieast one of the sample ponts if areater than the upper conwot imt, so the process is not in conto D. A least one of the sample points is greated than the lower control ima, so the process is not in contrat E. A least pne of the saryive pents a less than the upper control lamit, so the process a nod in contiol F. Wi of the sample peints are within the control limats, so the process is in control