Enterprise Industries produces Fresh, a brand of liquid detergent. In order to more effectively manage its inventory, the company would like to better predict demand for Fresh. To develop a prediction model, the company has gathered data concerning demand for Fresh over the last 33 sales periods. Each sales period is defined as one month. The variables are as follows:

Demand = Y = demand for a large size bottle of Fresh (in 100,000)

Price = the price of Fresh as offered by Ent. Industries

AIP = the average industry price

ADV = Ent. Industries Advertising Expenditure (in $100,000) to Promote Fresh in the sales period.

DIFF = AIP - Price = the "price difference" in the sales period

2. Make time series scatter plots of all five variables (five graphs). Insert trend line, equation, and R-squared. Observe graphs and provide interpretation of results.

3. Construct scatter plots of Demand vs. DIFF and Demand vs. ADV, Demand vs. AIP, and Demand vs. Price. Insert linear fitted line, equation, and R-squared. Observe graphs and provide interpretation. Note that Demand is always on the Y axis.

AIP Month/Yr. Aug. 2019 5.8 DIFF -0.3 0.25 0.6 0 Jan. 2020 6 6.3 5.7 5.85 5.8 5.75 5.85 5.65 6 6.1 6 6.1 6.2 ADV 5.3 6.75 7.25 7.3 7.2 6.5 6.75 6.89 5.8 5.5 6.5 6.25 7 6.9 11 5.75 6.1 6.8 PERIOD PRICE 6.1 2 5.75 3 5.7 4 5.7 5 5.6 6 5.6 7 5.6 8 6.3 9 6.4 10 6.2 5.9 12 5.9 13 5.7 14 15 5.75 16 5.8 17 5.7 18 5.8 19 5.7 20 5.8 21 5.8 22 5.75 23 5.7 24 5.55 25 5.6 26 5.65 27 5.7 28 5.75 29 5.8 30 5.3 31 5.4 32 5.7 33 5.9 34 35 36 0.25 0.2 0.15 -0.45 -0.75 -0.2 0.2 0.1 0.4 0.45 0.35 0.3 0.5 0.5 0.4 -0.05 -0.05 -0.1 0.2 0.1 0.5 0.6 -0.05 6.1 6.2 6.3 6.1 5.75 5.75 5.65 5.9 5.65 6.1 6.25 5.65 5.75 5.85 6.25 6.3 6.4 6.5 Jan. 2021 DEMAND 14.3 15.3 16.7 16.2 16.1 15.5 15.2 13.7 13.0 12.8 13.6 14.7 15.3 16.4 17.8 17.7 17.4 17.0 16.7 16.1 15.9 15.9 16.2 17.7 18.2 19.0 19.8 20.2 19.9 19.7 19.3 18.4 18.3 6.8 7.1 7 7.2 7.5 7.8 8.2 8.3 8.4 8.9 9.1 9.3 9.4 9.3 9.4 9.5 9.6 9.7 Jan. 2022 0.05 0.95 0.9 0.7 0.6 May-22 Jun-22 Jul-22 AIP Month/Yr. Aug. 2019 5.8 DIFF -0.3 0.25 0.6 0 Jan. 2020 6 6.3 5.7 5.85 5.8 5.75 5.85 5.65 6 6.1 6 6.1 6.2 ADV 5.3 6.75 7.25 7.3 7.2 6.5 6.75 6.89 5.8 5.5 6.5 6.25 7 6.9 11 5.75 6.1 6.8 PERIOD PRICE 6.1 2 5.75 3 5.7 4 5.7 5 5.6 6 5.6 7 5.6 8 6.3 9 6.4 10 6.2 5.9 12 5.9 13 5.7 14 15 5.75 16 5.8 17 5.7 18 5.8 19 5.7 20 5.8 21 5.8 22 5.75 23 5.7 24 5.55 25 5.6 26 5.65 27 5.7 28 5.75 29 5.8 30 5.3 31 5.4 32 5.7 33 5.9 34 35 36 0.25 0.2 0.15 -0.45 -0.75 -0.2 0.2 0.1 0.4 0.45 0.35 0.3 0.5 0.5 0.4 -0.05 -0.05 -0.1 0.2 0.1 0.5 0.6 -0.05 6.1 6.2 6.3 6.1 5.75 5.75 5.65 5.9 5.65 6.1 6.25 5.65 5.75 5.85 6.25 6.3 6.4 6.5 Jan. 2021 DEMAND 14.3 15.3 16.7 16.2 16.1 15.5 15.2 13.7 13.0 12.8 13.6 14.7 15.3 16.4 17.8 17.7 17.4 17.0 16.7 16.1 15.9 15.9 16.2 17.7 18.2 19.0 19.8 20.2 19.9 19.7 19.3 18.4 18.3 6.8 7.1 7 7.2 7.5 7.8 8.2 8.3 8.4 8.9 9.1 9.3 9.4 9.3 9.4 9.5 9.6 9.7 Jan. 2022 0.05 0.95 0.9 0.7 0.6 May-22 Jun-22 Jul-22