3. Your colleague ran a linear regression analysis to understand the effect of talabat vouchers on the ist visit on the total number of sessions (the training data was consolidated on a user level, with voucher = binary variable, with values 0/1 and target variable = total number of orders during the entire lifetime of each user). The results showed an R2 = 0.6 and the estimated coefficient for voucher was 5. He needs help interpreting these results and checks in with you before presenting the results to the shareholders. What would you advise