Six Sigma: Select one: a. ultimately reduces process costs b. decreases customer satisfaction c. is a methodology for process improvement d. is a statistical concept that seeks to find variation in processes e. all of the above f. some of the above

Six sigma ultimately reduces process costs.

Explanation:

Six sigma method is used to improve processes by reducing variations within processes, that could causes errors and lead to defective products. This leads to a reduction in process costs.

By reducing product defects, six sigma automatically increases customer satisfaction.