... Distribution
tables to assist you with your analysis.
408 Quantitative methods for business Chapter 13
412 Quantitative methods for business Chapter 13
(c) The probability that Z is greater than 2.24, ... z)
Figure 13. 9
Example 13. 2 (a): 0.4207 ϭ P(Z Ͼ 0.2)
3210Ϫ1Ϫ2Ϫ3
0.4
0.3
0.2
0.1
0.0
z
P(Z ϭ z)
Figure 13. 10
Example 13. 2 (b): 0.0505 ϭ P(Z Ͼ 1.64)
420 Quanti...
... 360, as the forecast for week 2, the error for
week 2 is:
Error (week 2) ϭ Actual (week 2) Ϫ Forecast (week 2) ϭ 410 Ϫ 360 ϭ 50
The forecast for week 3 will be:
Forecast (week 3) ϭ Forecast (week ... to:
(a) Ascertain the seasonal components for each quarter.
(b) Compute the mean squared deviation (MSD) for the model.
312 Quantitative methods for business Chapter 9
use the...
... 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 ... were:
0131 2022010310121102
110 Quantitative methods for business Chapter 4
Observation or Observed value This is a value of a variable that has
ac...
... of the distribution.
172 Quantitative methods for business Chapter 5
162 Quantitative methods for business Chapter 5
Produce a time series plot to show these data.
131 3
0
5000
10,000
Quarter
Energy ... and leaf display for these figures using
thousands as stem digits.
(b) Modify your display by using two stem lines for each stem
digit.
174 Quantitative methods f...
... 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 ... (CV) * 100ϭ
s
x
208 Quantitative methods for business Chapter 6
The means are the same, 7.111, but the standard deviation for Slugar is higher than the
standard d...
... 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...
... locksmiths,
Chapter 8 Counting the cost – summarizing money variables over time 283
274 Quantitative methods for business Chapter 8
ABC
1 Ϫ120000
2 30000
3 30000
4 30000
5 25000
6 60000
and 13% , the ... 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 bu...