QUESTION $3(20$ Marks$)$ Care Construction specialises in the renovation of older residential properties located on Smith Street. The company has observed that its revenue from renovation projects appears to be influenced by the overall payroll earnings in the KwaZulu$-$Natal province. In response to this observation, management at Care Construction is looking to develop a mathematical model to forecast future sales based on changes in provincial $($KwaZulu$-$Natal$)$ payroll trends. To support this initiative, the chief executive officer $($CEO$)$ has compiled data $($shown in the table below$)$ outlining the company's monthly revenues alongside the corresponding total employee earnings in KwaZulu$-$Natal for the past six months. This analysis is expected to assist the company in understanding and anticipating market demand more effectively, enabling strategic decision$-$making and improved resource planning.Sales R $($millions$)$KwaZulu$-$Natal Payroll R $($millions$)$Sales R $($millions$)$KwaZulu$-$Natal Payroll R $($millions$)3\mathrm{.}1$ As an operations management expert, the CEO of Care Construction has requested that you determine the estimated sales if payroll is projected to be R$8\mathrm{.}2$ million, R$12$ million and R$9\mathrm{.}3$ million. Your response should consider the linear regression approach. $3\mathrm{.}2$ The CEO wants to know the merits of the forecasting approach utilised. Discuss the contents of your response.