A parts manufacturer monitors machines for defective parts. If the probability of a
machine making a defective part is greater
than 0.05, the machine has to be adjusted.
The production data for four machines is
shown in the table.
Machine 1
Machine 2
Machine 3
Machine 4
1,200
1,200
1,400
1,500
Number of
Defective Parts
58
62
70
74
Which machine needs to be adjusted?
A Machine 1
B Machine 2
C Machine 3
D Machine 4
Calculator Formulas