Table B.10 contains data on the number of airline miles flown in the United Kingdom. This is strongly seasonal data. Find the sample autocorrelation function for this time series. a. Is the...

Month

Miles (in millions)

Month

Miles (in millions)

Jan-1964

7.269

Jul-1967

12.222

Feb-1964

6.775

Aug-1967

12.246

Mar-1964

7.819

Sep-1967

13.281

Apr-1964

8.371

Oct-1967

10.366

May-1964

9.069

Nov-1967

8.730

Jun-1964

10.248

Dec-1967

9.614

Ju1-1964

11.030

Jan-1968

8.639

Aug-1964

10.882

Feb-1968

8.772

Sep-1964

10.333

Mar-1968

10.894

Oct-1964

9.109

Apr-1968

10.455

Nov-1964

7.685

May-1968

11.179

Dec-1964

7.682

Jun-1968

10.588

Jan-1965

8.350

Jul-1968

10.794

Feb-1965

7.829

Aug-1968

12.770

Mar-1965

8.829

Sep-1968

13.812

Apr-1965

9.948

Oct-1968

10.857

May-1965

10.638

Nov-1968

9.290

Jun-1965

11.253

Dec-1968

10.925

Jul-1965

11.424

Jan-1969

9.491

Aug-1965

11.391

Feb-1969

8.919

Sep-1965

10.665

Mar-1969

11.607

Oct-1965

9.396

Apr-1969

8.852

Nov-1965

7.775

May-1969

12.537

Dec-1965

7.933

Jun-1969

14.759

Jan-1966

8.186

Jul-1969

13.667

Feb-1966

7.444

Aug-1969

13.731

Mar-1966

8.484

Sep-1969

15.110

Apr-1966

9.864

Oct-1969

12.185

May-1966

10.252

Nov-1969

10.645

Jun-1966

12.282

Dec-1969

12.161

Ju1-1966

11.637

Jan-1970

10.840

Aug-1966

11.577

Feb-1970

10.436

Sep-1966

12.417

Mar-1970

13.589

Oct-1966

9.637

Apr-1970

13.402

Nov-1966

8.094

May-1970

13.103

Dec-1966

9.280

Jun-1970

14.933

Jan-1967

8.334

Ju1-1970

14.147

Feb-1967

7.899

Aug-1970

14.057

Mar-1967

9.994

Sep-1970

16.234

Apr-1967

10.078

Oct-1970

12.389

May-1967

10.801

Nov-1970

11.594

Jun-1967

12.953

Dec-1970

12.772