Use α=0.05 to test the following time series for positive autocorrelation. Period Sales Period Sales Period Sales
1 6 6 9 11 17
2 7 7 11 12 12
3 11 8 12 13 15
4 8 9 8 14 15
5 7 10 11 15 15
Click the icon to view the critical values for the Durbin-Watson test for α=0.05.
Identify the null and alternative hypotheses.
Choose the correct answer below.
A. H0: Positive autocorrelation is present H1: No positive autocorrelation is present
B. H0: No negative autocorrelation is present H1: Negative autocorrelation is present
C. H0: Negative autocorrelation is present H1: Positive autocorrelation is present
D. H0: No positive autocorrelation is present H1: Positive autocorrelation is present
Determine the Durbin-Watson statistic.
d=nothing
(Round to two decimal places as needed.)
Identify the critical values.
dL=nothing
dU=nothing
(Round to two decimal places as needed.) State the conclusion. Choose the correct answer below.
A. The test is inconclusive.
B. Reject H0 and conclude that no positive autocorrelation is present.
C. Reject H0 and conclude that a positive autocorrelation is present.
D. Fail to reject H0 and conclude that a positive autocorrelation is present.
E. Fail to reject H0 and conclude that no positive autocorrelation is present. Click to select your answer(s).