... a
F
MSB
MSW
284.465
4.684ϭϭ ϭ
60 727.
552 Quantitative methods for business Chapter 17
Chapter 17 Statistical inference: population means and bivariate data 569
17. 4 Contingency analysis
To investigate ... represented by the letter E.
570 Quantitative methods for business Chapter 17
Example 17. 17
What results would we expect to see in the contingency table i...
... cumulative frequency for each class.
(c) Plot a cumulative frequency graph of the distribution.
172 Quantitative methods for business Chapter 5
162 Quantitative methods for business Chapter 5
Produce ... stem lines for each stem
digit.
174 Quantitative methods for business Chapter 5
the number of days in the previous week staff in the depart-
ment were off...
... correlation respectively.
230 Quantitative methods for business Chapter 7
Figure 7.2
Perfect positive
correlation
6543210
20
10
0
X
Y
242 Quantitative methods for business Chapter 7
a ϭ (∑y Ϫ b∑x)/n ... linear.
232 Quantitative methods for business Chapter 7
Figure 7.5
Good negative
correlation
6543210
20
10
0
X
Y
Figure 7.6
Zero correlation
6543210
20
10
0
X
Y
2...
... to compensate for the time
that passes before they arrive. The first of these techniques that we
shall consider is the net present value.
266 Quantitative methods for business Chapter 8
Example ... choose.
284 Quantitative methods for business Chapter 8
(c) Compare the answers you get for (a) and (b). Which method
would be more appropriate in this case, and why?
8.5 A...
... to select for the sample.
Example 15.4
How can the HR director in Example 15.3 use systematic sampling to select her sample
of 400 employees?
468 Quantitative methods for business Chapter 15
no ... the poll was biased against the poor and
unemployed, who largely voted for Roosevelt.
478 Quantitative methods for business Chapter 15
15.3.4 Convenience sampling
This meth...
... decimal places.)
Chapter 1 Setting off 31
Quantitative Methods for
Business
Contents
Preface xi
Acknowledgements xiii
Chapter 1 Setting off 1
1.1 Quantitative methods, numbers and business 1
1.2 ... bill for the operatives.
∑
,
x
i
iϭ
2
and explain what your answer means
4
∑
,
Chapter 1 Setting off 29
Preface
Quantitative Methods for Business provides an understa...
... will
76 Quantitative methods for business Chapter 2
66 Quantitative methods for business Chapter 2
The approach to solving a minimization problem is essentially the
same as that we use for a maximization ... its length does it even touch the feasible region, so it is not possible for the
48 Quantitative methods for business Chapter 2
In Figure 2.11 the steep...
... x,
forming the coefficient, and the power reduced from 2 to 1:
x
2
becomes 2x
2Ϫ1
or simply 2x
This means that for the equation:
y ϭ x
2
88 Quantitative methods for business Chapter 3
82 Quantitative ... at the Kawasaki factory.
Chapter 3 Dealing with curves without going round the bend 101
92 Quantitative methods for business Chapter 3
Example 3.9
The total revenue...
... continuous
114 Quantitative methods for business Chapter 4
132 Quantitative methods for business Chapter 4
25 13 0 13 20 18 13 16 15 0 15 14
15 9 7 14 17 13 3 15 7 23 10 15
Present these data in the form ... each category.
118 Quantitative methods for business Chapter 4
At this point you may find it useful to try Review Questions 4.6 to 4.8
at the end of the c...
... cereals were recorded and collated into the following
218 Quantitative methods for business Chapter 6
202 Quantitative methods for business Chapter 6
Example 6.23
Six newsagents sell the following ... observation.
Array
912131414141515151 6171 7 17
17 19 19 20 20 21 21 22 24 27
The median is 17, which also happens to be the mode as the value 17 occurs four
times, and...