BUS-660 Ch. 6
fully solved &
updated
Time series - answer a sequence of observations on a variable
measured at successive points in time or over successive periods of
time
Time series plot - answer a graphical representation of the
relationship between time and the time series variable. time is
shown on the horizontal axis and the time series values are shown
on the vertical axis
Stationary time series - answer a time series whose statistical
properties are independent of time. for a stationary time series, the
process generating the data has a constant mean and the variability
of the time series is constant over time
Trend pattern - answer this exists if the time series plot shows
gradual shifts or movements to relatively higher or lower values
over a longer period of time
Seasonal patterns - answer this exists if the time series plot exhibits
a repeating pattern over successive periods
fully solved &
updated
Time series - answer a sequence of observations on a variable
measured at successive points in time or over successive periods of
time
Time series plot - answer a graphical representation of the
relationship between time and the time series variable. time is
shown on the horizontal axis and the time series values are shown
on the vertical axis
Stationary time series - answer a time series whose statistical
properties are independent of time. for a stationary time series, the
process generating the data has a constant mean and the variability
of the time series is constant over time
Trend pattern - answer this exists if the time series plot shows
gradual shifts or movements to relatively higher or lower values
over a longer period of time
Seasonal patterns - answer this exists if the time series plot exhibits
a repeating pattern over successive periods
