Given the following data, use least-squares regression to derive a trend equation: The least-squares regression equation that shows the best relationship between demand and period is (round your responses to two decimal places): y^=+x. where y^= Demand and x= Poriod. What is your estimate of the dernand in period 7 ? Estimated demand in period 7 is (round your response to two docimal places). What is your estimate of the demand in period 12 ? Estimated demand in period 12 is (round your response to two decimal places)