The data for the visibility chart in Discussion Question are shown in Table. The visibility standard is set at 100. Readings below 100 indicate that air pollution has reduced visibility and readings above 100 indicate that the air is clearer.

a. Use several methods to generate a visibility forecast for August 31 of the second year. Which method seems to produce the best forecast?
b. Use several methods to forecast the visibility index for the summer of the third year. Which method seems to produce the best forecast? Support yourchoice.

VISIBILITY DATA Date Ye Year 2 Date Year 1 Year 2e Year 1 Year 2 July 22 125 130 Ag5 105 200 Aug 19170160 20 125165 21 85 5 80 23 95 100 24 85 200 25 160 00 110 27 100 50 28 95 135 70 30 60 105 23 100 10 40 125 25 100 60 26 185 165 27 5 25 165 125 6 205 10 90 00 45 200 9 100 160 10 120 100 55 12 5 130 30 125 5 1365 75 14 60 30 15 65 100 22 45 11 85 29 200 26 105 90 105 Aug1 5 160 2 135 125 3 175 130 4 200 205 31 29 50 16 110 17 210 150 18 110 220