37. [0/5 Points] DETAILS PREVIOUS ANSWERS 33 Allen and coworkers collected the data found in the following table relating the intrinsic rate y of increase of the citrus rust mite to the temperature 7 in degrees Celsius. T14 17 19 21 23 25 27 29 31 y-0.05 -0.02 0.04 0.08 0.10 0.09 0.12 0.12-0.08 -0.24 A. Use cubic regression to find the best-fitting cubic to the data. y(t) = B. Find the rate of change of the cubic regression function. y'(t) = C. Find second derivative of the cubic regression function. y"(t) = E. Find the interval where the function if concave up and concave down. concave up: (-, 19.75) 0(-, 19.75] [19.75,00) (19.75,) no interval concave down: (-, 19.75) (-0.19.75] (19.75,) [19.75,) O no interval