Experimental data from the DoE should enable the team to compute a set of important metrics. The table below $($Main Metrics$)$ summarises the values for the rate of defective handles, the average number of defects per handle $($defects per unit $($DPU$)),$ the number of DPMO and the Sigma Level.

However, the team need your support to compute these important metrics. Please complete the table for them showing workings for calculations.

$\backslash$table$[[,,$Casting Experiment Resul,,,,$],[$Structural Abnormailites,Filling Errors,Solidification shrinkages,Pores,Buried Extractor,Scoria and impurities,All Other$],[824,735,293,288,251,207,13]]$

$\backslash$table$[[$Main Metrics,$],[$Number of handles produced $($P$),1777],[$Total defective handles $($D$),1408],[$Total number of defects,$2611],[$Number of opportunities for defect $($O$),7],[$Rate of defectives $(\%),],[$DPU$,],[$Sigma Level $($Z$),],[$DPMO$,],[$Mean of defects,$],[$SD of defects,$]]$

Base on this I have the following results: Have do you calculate the SD and Sigma Z value?

$\backslash$table$[[$Structural Abnormailites,Filling Errors,$\backslash$table$[[$Solidification$],[$shrinkages$]],$Pores,$\backslash$table$[[$Buried$],[$Extractor$]],\backslash$table$[[$Scoria and$],[$impurities$]]],[824,735,293,288,251,207],[$Number of handles produced $($P$),177,,,,],[$Total defective handles $($D$),1408,,,,],[1408$Total number of defects,$2611,,,,],[\backslash$table$[[$Number of opportunities for defect$],[($O$)]],7,,,,],[$Rate of defectives $(\%),7,,,,],[$DPU$,79\%,,,,],[$Sigma Level $($Z$),1\mathrm{.}47,,,,],[$DPMO$,2\mathrm{.}31,,,,],[$Mean of Defects,$209904,,,,],[$SD of Defects,$373,,,,]]$

How can I calculate the SD and Sigma Z value? I have been provided these results.