The moving averages and exponential smoothing methods are appropriate for a time series exhibiting _____.Group of answer choicesa cyclical patterna horizontal patterntrendsseasonal effects

Which of the following is NOT a technique for making a time series stationary?Review LaterDifferencingSeasonal adjustmentExponential smoothingLog transformation

State the conditions under which the Moving Average method can be recommended for trend analysis. How will you determine the period of the moving average?

In ratio to moving average method for seasonal indices, the ratio of an observed value to the moving average measure the influence of _________. a. both trend and cyclical variation b. both seasonal and irregular variation c. cyclical variation d. trend

For a quarterly time series with a strong seasonal pattern, which of the following moving averages should be used to estimate the trend?Group of answer choicesa centred 5-point moving averagea 4-point moving averagea 2x4-point moving averagea centred 7-point moving average

Which of the following techniques is commonly used to handle time series data with a linear trend?Review LaterDifferencingSeasonal adjustmentMoving average smoothingLinear regression