Six Sigma (60) is a set of techniques and tools for process improvement. It was introduced by American engineer Bill Smith while working at Motorola in 1980.Jack Welch made it central to his business strategy at General Electric in 1995. A six sigma process is one in which 99.99966% of all opportunities to produce some feature of a part are statistically expected to be free of defects. 99.7% of the data are within 3 standard deviations of the mean 95% within 2 standard deviations 68% within 1 standard deviation # - 30 H- 20 u + 20 # + 30 1. Please write R code to verify the probabilities within o. 20 and 30 as shown in the above graph