Recreate the AR(t) model output for the close price series shown in the left of Table 7.4-Does the AR model indicate that this is a random walk? Explain how you reach your conclusion.

Date	Close
5-Feb-01	53.84
6-Feb-01	53.20
7-Feb-01	54.66
8-Feb-01	52.30
9-Feb-01	50.40
12-Feb-01	53.45
13-Feb-01	54.10
14-Feb-01	53.00
15-Feb-01	52.00
16-Feb-01	52.36
20-Feb-01	53.40
21-Feb-01	50.21
22-Feb-01	49.70
23-Feb-01	50.28
26-Feb-01	51.07
27-Feb-01	50.99
28-Feb-01	50.09
1-Mar-01	48.34
2-Mar-01	48.92
5-Mar-01	48.37
6-Mar-01	49.55
7-Mar-01	50.70
8-Mar-01	51.65
9-Mar-01	50.78
12-Mar-01	48.31
13-Mar-01	48.80
14-Mar-01	47.20
15-Mar-01	47.85
16-Mar-01	46.93
19-Mar-01	47.38
20-Mar-01	47.88
21-Mar-01	48.31
22-Mar-01	46.91
23-Mar-01	47.57
26-Mar-01	49.60
27-Mar-01	50.29
28-Mar-01	49.66
29-Mar-01	50.62
30-Mar-01	50.50
2-Apr-01	50.64
3-Apr-01	49.19
4-Apr-01	49.87
5-Apr-01	50.54
6-Apr-01	51.24
9-Apr-01	50.30
10-Apr-01	50.84
11-Apr-01	50.23
12-Apr-01	49.70
16-Apr-01	49.05
17-Apr-01	49.24
18-Apr-01	52.73
19-Apr-01	52.50
20-Apr-01	51.71
23-Apr-01	52.04
24-Apr-01	50.10
25-Apr-01	50.67
26-Apr-01	51.24
27-Apr-01	52.83
30-Apr-01	51.74
1-May-01	53.50
2-May-01	53.08
3-May-01	53.10
4-May-01	53.02
7-May-01	52.05
8-May-01	51.98
9-May-01	51.59
10-May-01	53.42
11-May-01	54.10
14-May-01	54.35
15-May-01	52.00
16-May-01	51.65
17-May-01	51.76
18-May-01	52.04
21-May-01	53.20
22-May-01	53.52
23-May-01	52.52
24-May-01	52.89
25-May-01	51.20
29-May-01	51.21
30-May-01	51.47
31-May-01	51.75
1-Jun-01	51.72
4-Jun-01	50.99
5-Jun-01	51.30
6-Jun-01	50.75
7-Jun-01	51.10
8-Jun-01	51.02
11-Jun-01	50.23
12-Jun-01	50.57
13-Jun-01	50.15
14-Jun-01	49.50
15-Jun-01	48.15
18-Jun-01	48.52
19-Jun-01	48.86
20-Jun-01	49.80
21-Jun-01	50.45
22-Jun-01	49.98
25-Jun-01	49.00
26-Jun-01	49.10
27-Jun-01	48.50
28-Jun-01	49.37
29-Jun-01	48.80
2-Jul-01	49.75
3-Jul-01	49.22
5-Jul-01	48.60
6-Jul-01	47.34
9-Jul-01	48.25
10-Jul-01	47.50
11-Jul-01	48.85
12-Jul-01	51.85
13-Jul-01	52.90
16-Jul-01	53.48
17-Jul-01	53.35
18-Jul-01	53.98
19-Jul-01	54.23
20-Jul-01	54.28
23-Jul-01	53.03
24-Jul-01	53.10
25-Jul-01	55.10
26-Jul-01	55.50
27-Jul-01	55.41
30-Jul-01	55.88
31-Jul-01	55.90
1-Aug-01	55.01
2-Aug-01	55.99
3-Aug-01	55.39
6-Aug-01	54.50
7-Aug-01	55.08
8-Aug-01	54.53
9-Aug-01	54.17
10-Aug-01	53.60
13-Aug-01	52.20
14-Aug-01	52.36
15-Aug-01	52.00
16-Aug-01	51.69
17-Aug-01	50.80
20-Aug-01	51.59
21-Aug-01	49.94
22-Aug-01	50.24
23-Aug-01	49.74
24-Aug-01	50.95
27-Aug-01	50.39
28-Aug-01	50.10
29-Aug-01	49.15
30-Aug-01	47.60
31-Aug-01	48.05
4-Sep-01	48.45
5-Sep-01	49.15
6-Sep-01	47.37
7-Sep-01	46.22
10-Sep-01	46.23
17-Sep-01	44.00
18-Sep-01	45.35
19-Sep-01	45.45
20-Sep-01	45.31
21-Sep-01	44.66
24-Sep-01	47.28
25-Sep-01	48.40
26-Sep-01	49.48
27-Sep-01	49.39
28-Sep-01	49.50
1-Oct-01	49.76
2-Oct-01	51.60
3-Oct-01	52.73
4-Oct-01	51.50
5-Oct-01	52.40
8-Oct-01	51.11
9-Oct-01	52.08
10-Oct-01	53.63
11-Oct-01	53.49
12-Oct-01	52.90
15-Oct-01	53.48
16-Oct-01	53.14
17-Oct-01	52.22
18-Oct-01	51.90
19-Oct-01	53.01
22-Oct-01	53.04
23-Oct-01	52.61
24-Oct-01	52.48
25-Oct-01	53.30
26-Oct-01	53.42
29-Oct-01	51.90
30-Oct-01	50.60
31-Oct-01	51.40
1-Nov-01	52.24
2-Nov-01	52.97
5-Nov-01	53.90
6-Nov-01	54.94
7-Nov-01	53.82
8-Nov-01	54.50
9-Nov-01	55.10
12-Nov-01	55.58
13-Nov-01	54.26
14-Nov-01	55.28
15-Nov-01	56.00
16-Nov-01	55.10
19-Nov-01	55.75
20-Nov-01	55.70
21-Nov-01	55.12
23-Nov-01	55.80
26-Nov-01	55.75
27-Nov-01	55.08
28-Nov-01	55.00
29-Nov-01	54.65
30-Nov-01	55.15
3-Dec-01	54.58
4-Dec-01	55.17
5-Dec-01	56.57
6-Dec-01	55.62
7-Dec-01	55.34
10-Dec-01	54.27
11-Dec-01	54.08
12-Dec-01	54.33
13-Dec-01	53.36
14-Dec-01	54.06
17-Dec-01	55.85
18-Dec-01	55.78
19-Dec-01	56.28
20-Dec-01	56.26
21-Dec-01	57.57
24-Dec-01	57.13
26-Dec-01	58.15
27-Dec-01	58.37
28-Dec-01	58.35
31-Dec-01	57.55
2-Jan-02	58.05
3-Jan-02	57.98
4-Jan-02	57.60
7-Jan-02	57.39
8-Jan-02	57.84
9-Jan-02	56.40
10-Jan-02	57.00
11-Jan-02	55.80
14-Jan-02	55.76
15-Jan-02	56.87
16-Jan-02	55.99
17-Jan-02	56.76
18-Jan-02	56.35
22-Jan-02	58.01
23-Jan-02	59.86
24-Jan-02	59.67
25-Jan-02	58.40
28-Jan-02	58.63
29-Jan-02	57.91
30-Jan-02	59.75
31-Jan-02	59.98
1-Feb-02	59.26
4-Feb-02	58.90