AquaPlus is a successful family owned water production business. JR the eldest daughter has just graduated from the UWI and has been promoted to the Sales and Marketing Manager. She has decided to embark on an aggressive sales and marketing campaign using some of the techniques she learnt at school. The sales of AquaPlus for the last five years are:
YEAR
SALES
2011
7,000
2012
10,000
2013
9,000
2014
11,000
2015
13,000
You have been placed in the role of JR.
i. Determine the least squares trend-line equation.
ii. Interpret the equation obtained above.
iii. Using the least squares trend equation plot the points on the line through the data.
iv. Using the data gathered above, c.