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,...

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.

Extracted 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