Question: In testing an air-conditioning system, the temperature T in a building was measured during the afternoon hours with the results shown in the table. Find

In testing an air-conditioning system, the temperature T in a building was measured during the afternoon hours with the results shown in the table. Find the least-squares line for T as a function of the time t from noon. Then predict the temperature when t = 2.5. Is this interpolation or extrapolation?

t (h) 0.0 1.0 2.0 3.0 4.0 5.0 T (C) 20.5 20.6

t (h) 0.0 1.0 2.0 3.0 4.0 5.0 T (C) 20.5 20.6 20.9 21.3 21.7 22.0

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