Question 4: Fresh Foods is a chain of supermarkets that operates over 300 stores across Canada. The Marketing Director of Fresh Foods wishes to study the effect of price on the weekly sales of two-liter bottles of their own private brand diet cola. The marketing director believes that it would be reasonable to price the diet cola between $0.50 and $2.00. He selects a random sample of 20 stores and then randomly assigns a selling price for the two-liter bottle of diet cola between $0.50 and $2.00 in each of the selected stores. The results after one week of sales are as follows Store Number Price Sales Store Number Price Sales A1 7 0.50 181 A-30 0.76 91 A-121 1.35 33 A127 1.79 13 A227 0.79 91 A-266 1.57 22 A-135 1.71 13 A117 1.27 34 AG 1.38 34 A-132 0.96 74 A-282 1.22 47 A120 0.52 164 A-172 1.03 73 A-272 0.64 129 A296 1.84 1 1 A120 1.05 55 A-143 1.73 15 A-194 0.72 107 A66 1.62 20 A105 0.75 119 Determine the coefficient of determination and interpret it. [4 Marks]