Create a line graph of the monthly average ratings for CBC for
the year. Note that there are multiple ratings data for the months;
you will need to calculate an average for each month first, and
then plot the averages. After you create the graph, fit a linear
trend line, displaying the formula and the r-squared. Explain to
the executives if you can use this time series data to forecast the
ratings of upcoming months. How accurate can you expect this
forecast to be?
| Observation | Network | Month | Day | Rating | Fact | Stars |
| 1 | BBS | 1 | 1 | 15.6 | 0 | 1 |
| 2 | BBS | 1 | 7 | 10.8 | 1 | 0 |
| 3 | BBS | 1 | 7 | 14.1 | 0 | 1 |
| 4 | BBS | 1 | 1 | 16.8 | 1 | 1 |
| 5 | BBS | 2 | 1 | 14.3 | 1 | 1 |
| 6 | BBS | 2 | 1 | 17.1 | 1 | 1 |
| 7 | BBS | 3 | 1 | 15.8 | 0 | 0 |
| 8 | BBS | 3 | 7 | 16.2 | 1 | 0 |
| 9 | BBS | 4 | 7 | 12.6 | 0 | 1 |
| 10 | BBS | 5 | 1 | 13.5 | 0 | 1 |
| 11 | BBS | 5 | 7 | 15.6 | 0 | 0 |
| 12 | BBS | 5 | 1 | 12.1 | 0 | 1 |
| 13 | BBS | 5 | 1 | 15.8 | 1 | 0 |
| 14 | BBS | 9 | 7 | 15 | 1 | 0 |
| 15 | BBS | 9 | 7 | 16.3 | 0 | 0 |
| 16 | BBS | 9 | 7 | 13.3 | 0 | 1 |
| 17 | BBS | 10 | 7 | 10.8 | 0 | 1 |
| 18 | BBS | 10 | 7 | 14.4 | 1 | 0 |
| 19 | BBS | 11 | 7 | 14.4 | 1 | 1 |
| 20 | BBS | 11 | 7 | 13.6 | 1 | 0 |
| 21 | ABN | 1 | 7 | 14.6 | 0 | 0 |
| 22 | ABN | 1 | 2 | 10.8 | 0 | 1 |
| 23 | ABN | 1 | 7 | 16.2 | 0 | 0 |
| 24 | ABN | 1 | 2 | 12.8 | 0 | 0 |
| 25 | ABN | 1 | 7 | 16 | 0 | 1 |
| 26 | ABN | 2 | 7 | 18.9 | 0 | 1 |
| 27 | ABN | 2 | 2 | 17.6 | 1 | 1 |
| 28 | ABN | 3 | 7 | 19.5 | 1 | 1 |
| 29 | ABN | 3 | 2 | 16.9 | 1 | 0 |
| 30 | ABN | 3 | 7 | 16.3 | 0 | 1 |
| 31 | ABN | 3 | 7 | 15.8 | 1 | 0 |
| 32 | ABN | 3 | 7 | 17.1 | 0 | 1 |
| 33 | ABN | 3 | 2 | 15.8 | 0 | 0 |
| 34 | ABN | 3 | 7 | 16 | 1 | 0 |
| 35 | ABN | 3 | 2 | 11.7 | 0 | 1 |
| 36 | ABN | 4 | 2 | 14.2 | 0 | 0 |
| 37 | ABN | 4 | 7 | 18.1 | 0 | 0 |
| 38 | ABN | 4 | 2 | 15.2 | 0 | 0 |
| 39 | ABN | 4 | 7 | 13.3 | 0 | 1 |
| 40 | ABN | 4 | 7 | 15.5 | 1 | 0 |
| 41 | ABN | 4 | 2 | 16.6 | 1 | 0 |
| 42 | ABN | 5 | 7 | 16.3 | 1 | 0 |
| 43 | ABN | 5 | 7 | 16.5 | 0 | 1 |
| 44 | ABN | 5 | 2 | 16.8 | 1 | 0 |
| 45 | ABN | 9 | 7 | 15.4 | 0 | 1 |
| 46 | ABN | 9 | 2 | 14.7 | 0 | 0 |
| 47 | ABN | 9 | 7 | 15.5 | 0 | 0 |
| 48 | ABN | 9 | 2 | 14.7 | 1 | 0 |
| 49 | ABN | 10 | 7 | 15.9 | 1 | 0 |
| 50 | ABN | 10 | 7 | 13.8 | 1 | 0 |
| 51 | ABN | 10 | 2 | 14.9 | 0 | 1 |
| 52 | ABN | 11 | 7 | 12.9 | 0 | 1 |
| 53 | ABN | 11 | 2 | 15.4 | 1 | 0 |
| 54 | ABN | 11 | 7 | 14.5 | 0 | 2 |
| 55 | ABN | 12 | 7 | 12.6 | 0 | 2 |
| 56 | ABN | 12 | 2 | 11.8 | 0 | 0 |
| 57 | ABN | 12 | 2 | 12.8 | 0 | 0 |
| 58 | ABN | 12 | 7 | 16.8 | 0 | 1 |
| 59 | CBC | 1 | 7 | 14 | 0 | 1 |
| 60 | CBC | 1 | 1 | 11.3 | 1 | 0 |
| 61 | CBC | 2 | 1 | 12.4 | 0 | 1 |
| 62 | CBC | 2 | 7 | 12.9 | 1 | 0 |
| 63 | CBC | 3 | 1 | 13.2 | 1 | 0 |
| 64 | CBC | 3 | 7 | 12.8 | 1 | 0 |
| 65 | CBC | 4 | 1 | 12.4 | 1 | 1 |
| 66 | CBC | 4 | 7 | 13.2 | 0 | 1 |
| 67 | CBC | 5 | 1 | 17.5 | 1 | 0 |
| 68 | CBC | 5 | 7 | 11.6 | 0 | 0 |
| 69 | CBC | 5 | 7 | 12.1 | 0 | 0 |
| 70 | CBC | 6 | 1 | 15.6 | 0 | 0 |
| 71 | CBC | 6 | 7 | 12.1 | 0 | 1 |
| 72 | CBC | 6 | 1 | 11.8 | 0 | 0 |
| 73 | CBC | 7 | 7 | 12.3 | 0 | 0 |
| 74 | CBC | 7 | 1 | 14.2 | 1 | 1 |
| 75 | CBC | 8 | 7 | 11.6 | 0 | 0 |
| 76 | CBC | 8 | 1 | 13.3 | 1 | 0 |
| 77 | CBC | 8 | 1 | 13.6 | 1 | 0 |
| 78 | CBC | 9 | 1 | 12.4 | 0 | 1 |
| 79 | CBC | 9 | 1 | 13.8 | 1 | 0 |
| 80 | CBC | 9 | 7 | 11.9 | 1 | 0 |
| 81 | CBC | 10 | 1 | 14.6 | 0 | 0 |
| 82 | CBC | 10 | 1 | 15.8 | 1 | 1 |
| 83 | CBC | 10 | 1 | 15.4 | 0 | 1 |
| 84 | CBC | 11 | 1 | 12.8 | 0 | 1 |
| 85 | CBC | 11 | 7 | 12.8 | 0 | 0 |
| 86 | CBC | 12 | 1 | 15.1 | 0 | 0 |
| 87 | CBC | 12 | 1 | 11.4 | 0 | 1 |
| 88 | CBC | 12 | 1 | 19.1 | 1 | 0 |
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