A process operating at the Six Sigma level would be expected to produce which of the following?

A process operating at the Six Sigma level would be expected to produce which of the following?

Approximately $3\mathrm{.}4$ defects per million products

Approximately $3\mathrm{.}4$ defects per million defect opportunities

Approximately $3\mathrm{.}4$ defects per million success opportunities

Approximately $3\mathrm{.}4$ defects per million processes