Please show your work. 5 points total, 2.5 points each
Solution
(a)
Replacement is possible if fail before 4 year.
z =(4-5)/0.5=-2
P(z) =0.02275 OR 2.275 %
(b)
P(z) = 0.005
z =-2.576
(4-5)/SD =-2.576
SD = 0.3882 year.
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Please show your work. 5 points total, 2.5 points each.pdf
1. Please show your work. 5 points total, 2.5 points each
Solution
(a)
Replacement is possible if fail before 4 year.
z =(4-5)/0.5=-2
P(z) =0.02275 OR 2.275 %
(b)
P(z) = 0.005
z =-2.576
(4-5)/SD =-2.576
SD = 0.3882 year