Weekly commodity prices for heating oil ( in cents) were obtained for a period of 30 weeks and regresses against time. Based on the regression output show below, what does the Durbin-Watson statistic indicate?
Based on the regression output shown below, what does the Durbin-Watson statistic indicate?
the regression equation is price (cents) = 128 + 1.08 time
predictor coef se coef t p
constant 128.112 2.092 61.25 0
time 1.0782 .1407 7.66 0
s=5.07299
r-Sq = 71.9%
durbin-watson statistic = .244822
a. the residuals are not autocorrelated
b. the residuals are negatively autocorrelated
c. the test is inconclusive
d. the residuals are positively autocorrelated
e. none of the above. the durbin-watson cannot be used for this mode