help with part b

The IRS is concerned with improving the accuracy of tax intormation given by its representatives over the telephone, Previous atuoles involved asing a set of 25 queabons of a Recently, IRS representatives have been fecesving mote trantere: proportions of correct answers were: 20,16,18,16,21,14,21,20,17,20,23,15,23,19,19,18,23,15,21, and 21 . The UCLip equals 0.4935 and the LCL Lp equals 0 . Enter your responses nounded to four decimal places. If your antwar for tClip it negative, entur tha value as ay. b. Is the tax information process in statistical control? Since there the process is considered to be