Question: 28
(Choose 1 answer)
A particular production process used to manufacture ferrite magnets used to operate reed switches in
electronic meters is known to give 8% defective magnets on average. If 300 magnets are randomly selected,
use normal distribution to approximate probability that the number of defective magnets is greater than 24 and
smaller than 30.
Let P(Z<1.17) = 0.879; P(Z<0.11) = 0.544; P(Z < 1.06) = 0.855
A. 0.335
B. 0.121
C. 0.311
D. 0.145
E. None of the other choices is correct
