☑Kizspy.me
(Choose 1 answer)
(See picture)
☐ A
A. 0.0294
B. 0.0359
C. None of the other choices is correct
☐ E
D. 0.0668
E. 0.0559
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FUQ.sh
sh the exam.
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.
