$3.)$ Suppose that you are working for a small branch of a major bookstore chain in the country. The company has kept track of their monthly demand for their bestselling fantasy children's book over a ten$-$month period. You are tasked to generate a demand function that will help the company forecast its sales. Month Jan Feb March Apri May June July Aug Sept Oct $1$ Sales $1209010075110506075180175($in units$)$ Create a scatterplot. What is the correlation coefficient between time and sales? Use MS Excel to generate your forecasting model. Is your model reliable for predicting demand? Why or why not? Justify your answer.