Question: A group of adults aged 20 to 80 years was tested see how far away they could first hear a police siren that was coming from behind them. The regression equation that describes the relation between distance (feet) and age (year) was found to be:

Distance = 500 – 3 Age

a. Interpret the slope in terms of the problem. Be specific.

b. Based on the equation, would the correlation be positive or negative? Explain.

c. Could this equation be used to predict the distance that a 10 year old would first hear the police siren? Explain.