Your boss would like you to estimate the fixed and variable components of a particular cost. Actual data for this cost over four recent periods appear below. Period 1 Period 2 Period 3 Period 4 Activity 27 26 23 28 Cost $ 381 $ 370 $ 348 $ 392 Using the least-squares regression method, what is the cost formula for this cost? Using the least-squares regression method, what is the cost formula for this cost? Multiple Choice Y = $140.14 + $8.98X Y = $0.00 + $15.79X Y = $148.04 + $8.64x Y = $153.47 + $5.88X