A consultant has been brought in to a manufacturing plant to help apply Six Sigma principles. The consultant$$s first task is to work on the production of rubber balls. The upper and lower spec limits are $21$ and $19$ cm$,$ respectively. The consultant takes ten samples of size five and computes the sample standard deviation to be $0\mathrm{.}7$ cm and the sample mean to be $19\mathrm{.}89$ cm$.$

Compute Cp