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    Forecasting: Graphing Trends

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    1) Plot the following time series to determine which of the trend models appears to fit better.
    Period
    1 2 3 4 5 6 7 8 9 10
    Time Series
    55 57 53 49 47 39 41 33 28 20

    2) The following trend line and seasonal indexes were computed from 4 weeks of daily observations. Forecast the 7 values for next week.
    y=120 + 2.3t t=1,2...,28
    Day Seasonal Index
    Sunday 1.5
    Monday .4
    Tuesday .5
    Wednesday .6
    Thursday .7
    Friday 1.4
    Saturday 1.9

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    https://brainmass.com/statistics/multivariate-time-series-and-survival-analysis/forecasting-graphing-trends-515154
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