Input dataClick ToolsClick Data Analysis Click Regression Enter range of data from Column B in Input Y Range Enter range of data from Column A in Input X Range Select Residuals Select Line Fit Plots Click OK Chart 18-7: Excel Trend Line

Input dataClick StatClick Time Series Click Trend Analysis Enter Variable name: Sales (Y) Select Model Type: Linear Select Generate Forecasts Number of forecasts: 1, 2 or 3 periods from origin, say 5, or any other numbers that you desire Click Storage Select the items desired Click OK Chart 18-8: Minitab Linear Trend Analysis

Chart 18-9: Excel Moving Average Input data Click Tools Click Data Analysis Click Moving Average Input data range Check Labels in First Row Check Chart Output In the Output Range, put the starting cell number Click OK

Input dataClick StatClick Time Series Click Moving Average Variable: Sales MA length: 7 Select Generate forecasts Number of forecasts: 3 Starting from origin: 25 Click Storage Check Fits, Residuals, and Forecasts as desired Click OK Chart 18-10: Minitab Moving Average

Click MegaStat Click Time Series Click Trendline Enter data range for imports Choose Exponential (Ln) for Type of Trend Beginning Trend: 1 Check Scatterplot Enter Forecast Period if desired Click OK Chart 18-11: Excel Exponential Trend

Input dataClick MegaStat Click Time Series Click Deseasonalization Enter range for Sales data Check Quarterly Enter Year 1 under First data period Click OK Chart 18-14: Excel Seasonal Index

Input dataClick StatClick Time Series Click Decomposition Variable: Sales Seasonal length: 4 Model Type: Multiplicative Model Components: Trend plus seasonal or Seasonal only First Obs.: 1Enter beginning period and the number of periods to forecast Click Results Check Display plot Check Summary table Click OK Chart 18-15: Minitab Seasonal Index