a-researcher-investigates-how-the-temperature-of-an-oven-in-c-affects-the-time-i

Question

A researcher investigates how the temperature of an oven (in $^{\circ} C$ ) affects the time (in minutes) needed to bake a loaf of bread. After collecting data from several test bakes, a regression equation $\hat{y} = 80.5 - 0.12 x$ was developed, where $x$ is the oven temperature. What does the symbol $\hat{y}$ represent in this equation?

Accepted Answer

The predicted baking time based on oven temperature

Answer

The actual observed baking time

Answer

The average oven temperature used in the experiment

Answer

The error between the actual and predicted baking time