Question 1102486
P(MG|PGood)=P(PGood|MG)*P(MG)/P(Part good|MG)*P(MG)+P(Part good)|MN)*P(MN)
This is 0.98*0.95/(0.98*0.95)+(0.4)*(0.05)=0.931/0.953=0.977 or 97.7%