Question

QUESTION 14 Following Regression Formula has been developed to forecast the No of Accidents in a Town of new England in Winter: Yc = 55.0 + 2.25X1 + 3.45X2 + 1.20 X3 Where Yc = No of expected accidents in winter (FORECAST) X1= No of Registered Automobiles in Thousands X2 = Alcoholic Beverage Sales in millions of $ X3 = Snow fall in Inches This Winter Actual Data of the Winter for the town is given below: Y = 180 (At) Actual no of accidents X1 = 20 : X 2 = 4.5 : X3 = 60 First calculate the forecast for the No of Accidents, using the Regression Formula and then find the difference between the no. of (Actual - Forecasted) accidents. According to you the this Forecasting model made approximate error of (At-Ft)

c. +20 cars

d. +13 cars

f. 0 Cars

Answer 1

SSt 225 X,t 3.45X2 12X3 4% Careen gre 20 X2- 4S, X3 6o 2 55t.25 (20)+3.45 (4.5)+/2(60) 187.525 > Nou gnuen atual 180 acduei -Y Appreximat error = 180-187.525 7.52S