Given 10 independent part,
No mean shift
This implies that,
The mean is 10
It also means that the variance is 0
And also the standard deviation is 0.
Then, the sigma deviation is
3×0+10=10.
Since none of the data is at such a high point, the manufacturing testing process has not yet reached three-sigma quality levels.
Since we have this let use the special consideration
Three-sigma limits set a range for the process parameter at 0.27% control limits. Three-sigma control limits are used to check data from a process and if it is within statistical control
Therefore,
The 0.27% will give the defective
2.7/100×10=0.027
Then, the none defective is
1-0.027=0.973
Which is 97.3%
