Use Excel or MegaStat to make an attractive, well-labeled time-series line chart. Adjust the Y-axis scale if necessary to show more detail (since Excel usually starts the scale at zero). If a fitted trend is called for, use Excel's option to display the equation and R2 statistic. Include printed copies of all relevant graphs with answers
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Excel and MegaStat are used to determine if the time-series line chart is used. The Y-axis scale is used to show more detail.