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Consider the following number of defective circuit boards produced by two different
machines on seven randomly selected days.
Machine
Defects
A
2
3
7
4
5
1
0
B
2
3
4
3
4
2
4
a) To three decimel places what is the mean of machine A? 3.143
b) To three decimel places what is the mean of machine B? 3.143
c) To 2 decimel places, what is the variance of machine A?
5.81
d) To two decimel places what is the variance of machine B? 0.81
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Unformatted text preview: e) To two decimel places, what is the standard deviation of machine A? 2.41 f) To two decimel places, what is the standard deviation of machine B? 0.90 g) Select the statement that best describes the machines. Can not compare, because there is not enough info Machine A is Better than machine B + Machine B is Better than machine A correcr answer Machine A is the same as machine B...
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This note was uploaded on 01/31/2012 for the course QM 2113 taught by Professor Kent during the Fall '11 term at ASU.
 Fall '11
 Kent

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