5) The data shown in Table 6E.3 a re the deviations from nominal diameter for holes drilled in a carbon-fiber composite material used in aerospace manufacturing. The values reported are

deviations from nominal in ten-thousandths of an inch. (a) Set up x-bar and R charts on the process. Is the process in statistical control? (b) Estimate the process standard deviation using the range method. (c) If specifications are at nominal +-100, what can you say about the capability of this process? (d)Calculate the PCR Cp