The specifications for a certain mass-produced valve prescribe a testing procedure according to which each valve can be classified as satisfactory or unsatisfactory (defective). Past experience has shown that the process can perform so that \(\bar{p}=0.03\). Construct a three-sigma control chart for the number of defectives obtained in samples of size 100, and on it plot the following numbers of defectives obtained in such samples randomly selected from 30 successive half-days of production: 3,4,2,1,5,2,1,2,3,1,3,2,2,2,1,1,2,0,4,3,1,0, 2,4,0,1,5,7,3, and 2.