%x Problem 4.39 Question Hel Given the following data, use least-squares regression to derive a trend equation: 1 2 3 4 5 6 Period Demand 8 10 5 8 7 15 The least-squares regression equation that shows the best relationship between demand and period is (round your responses to two decimal places): = 5.93 + .83 x where y = Demand and x = Period. What is your estimate of the demand in period 7? Estimated demand in period 7 is 11.73 (round your response to two decimal places). What is your estimate of the demand in period 12? Estimated demand in period 12 is (round your response to two decimal places)