Q1. The 2012 sales and profits of seven clothes companies were as follows: Firm Sales ($ billions) Profit ($ billions) Maxx 5.7 0.27 Bleu 6.7 0.12 Goden 0.2 0.00 Triex 0.6 0.04 Chateau 3.8 0.05 L & T 12.5 0.46 Eastview 0.5 0.00 a. Calculate the sample regression line, where profit is the dependent variable and sales is the independent variable. Use the formula (given in the handout) and Excel function to calculate a and b. b. Estimate the 2012 average profit of a clothing firm with 2012 sales of $0.2 billion. c. Can this regression line be used to predict a clothing firms profit in 2026? Explain.