Question: I only need help with the highlighted part: 1a an Data X 5 10 15 25 30 45 50 Y 31000 26000 22000 19000 18000

I only need help with the highlighted part: 1a an

Data X 5 10 15 25 30 45 50 Y 31000 26000 22000 19000 18000 15000 14500 a) Write the Cubic Regression equation (y=ax3+bx2+cxtd) for the given data: y = -0.3715x3 + 39.2373x2 + -1498.3082x + 37409.8837 b) Please insert the Residual Plot and window settings for the Cubic Regression: 2) Power Regression. To find on a TI-83/84, after entering the data in the L1 and L2, go to STAT, CALC, and then select A:PwrReg. a) Write the Power Regression equation (y=axb) for the given data: y = 54496.0959x-0.3334 b) Please insert the Residual Plot and window settings for the Power Regression

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