As the Apple Watch team planned for their US launch for the first quarter of 2015, an estimated monthly demand function for the US market was derived as shown in Figure 1: QAW =-150,000 -2400PAW +1520PGearS +1200PPebble -1200PiPhone6 +44A Where QAW is the quantity demanded of the Apple Watch per month, PAWis the price of the Apple Watch (dollars per unit), PGearS is the price of the Samsung Gear S watch (dollars per unit), PPebble is the price of the Pebble Steel (dollars per unit), PiPhone6 is the price of the mid-range iPhone 6 smartphone (dollars per unit), A is the quarterly targeted advertising budget for the Apple Watch (in thousands of Dollars per quarter). The estimated values are:PAW = $349, PGearS = $380, PPebble = $220, PiPhone6 = $299, A = $15,500 . Calculate the following. regression ananylsis, coefficient of determination and standard error