c) For a normally distributed process output with a mean of 55.0 and a variance of 4.0: i. Compute Cp and Cpk values if the specifications are 55.0 +4.00 [8 Marks] ii. If the mean shifts to 53.0 but the variance remains unchanged. Recompute and interpret these process capability indexes. [10 Marks] iii. If the variance around the original mean (55.0) can be reduced to 40% of its original value, how do the process capability indices change? [10 Marks]