Work out the values of parameters of the relationship shown in the Figure (i.e. work out the equation of the relationship).

MATLAB: An Introduction with Applications
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Question 4

The below data represent the advertising expenditure and sales of Little Liu Ltd from year 2008 to 2017.

 

Table: Advertising Expenditure vs. Sales from 2008 to 2017

 

Year

Advert. Expenditure

Sales

 

(x, £000)

(y, £000)

2008

8

30

2009

12

40

2010

11

29

2011

5

29

2012

14

43

2013

3

17

2014

6

20

2015

8

30

2016

4

22

2017

9

40

Total

80

300

 

Figure: Scatter Diagram of Advertising Expenditure and Sales with Trend line

 

 

 

  1. Work out the values of parameters of the relationship shown in the Figure (i.e. work out the equation of the relationship).
Figure: Scatter Diagram of Advertising Expenditure and Sales with Trend line
50
45
43
40
4아
40
35
30
30
29
29
25
22
20
20
17
15
10
5
4
10
14
16
Advertising Expenditure £000
Sales £000
Transcribed Image Text:Figure: Scatter Diagram of Advertising Expenditure and Sales with Trend line 50 45 43 40 4아 40 35 30 30 29 29 25 22 20 20 17 15 10 5 4 10 14 16 Advertising Expenditure £000 Sales £000
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