Question: 35
(Choose 1 answer)
(See picture)
A. 0.0294
B. 0.0559
C. 0.0359
D. 0.0668
E. None of the other choices is correct
The time for a worker to assemble a compo-
nent is normally distributed with mean 15 min-
utes and variance 4. Denote the mean assembly
times of 16 day-shift workers and 9 night-shift
workers by X and Y, respectively. Assume that
the assembly times of the workers are mutually
independent. Compute P(X - Y < -1.5)
Let P(Z-1.9)
P(Z-1.6)
0.0294, P(Z<-1.8) = 0.0359,
0.0559 and P(Z<-1.5)=0.0668.
