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
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.