What is the statistical relationship shown in the Figure and list out 3 characteristics of this relationship?   2. Work out the values of parameters of the relationship shown in the Figure (i.e. work out the equation of the relationship).   3.Explain the relationship and make recommendations to Little Liu Ltd based on the information given.

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Author:Amos Gilat
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Chapter1: Starting With Matlab
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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 ( See picture)

 

  1. What is the statistical relationship shown in the Figure and list out 3 characteristics of this relationship?

 

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

 

3.Explain the relationship and make recommendations to Little Liu Ltd based on the information given.

50
45
43
40
40
40
35
30
29
30
29
25
22
20
20
17
15
10
4
6.
8.
10
12
14
16
Advertising Expenditure £000
Sales £000
Transcribed Image Text:50 45 43 40 40 40 35 30 29 30 29 25 22 20 20 17 15 10 4 6. 8. 10 12 14 16 Advertising Expenditure £000 Sales £000
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