Answer all pls

16. For a 3-sigma xbar chart with sample size of 4, the probability of detecting 1.5 sigma process mean shift is most likely Select one: a. 0.5 b. 0.93 c. 0.07 d. 0.28 e. 0.72

17. Considering a c chart with LCL=0.513 & UCL=19.487, what is the probability of detecting the mean number of nonconformities shifted to 20?

Select one:

a.0.470

b.0.997

c.0.125

d.0.875

e.0.530

19. Assume the spec of a normally distributed quality characteristic is LSL=1 & USL=2. If the process mean is 1.2 and process standard deviation is 0.15, then the fraction of nonconforming of this process can be estimated as

Select one:

a. 0.74

b. 0.65

c. 0.56

d. 0.09

e. 0.82