Which part of the label on a loaf of bread would be most helpful in determining if the bread is made with whole grains?

Which estimate of dietary intake would give you the best information about the typical dairy intake of children participating in a head start program?

An ARMA model is often a good way to obtain model parsimony.   

The impulse response function is just the cross-correlation function scaled by the ratio of the standard deviations of the input and output time series.

If |θ| < 1 the first-order moving average model is invertible.  

_____ represent the distribution channel to most consumers because of their direct contact with the ultimate consumers.

Winters’ method is a seasonal exponential smoothing technique that is suitable for a time series where the amplitude of the seasonal effect is proportional to the average level of the time series.

The Seven Countries Study investigated the associations among average saturated fat intake, average serum cholesterol levels and coronary heart disease (CHD) incidence rates in 14 cohorts of people living in seven countries.  This is an example of (a/an)

In first-order exponential smoothing with λ = 0.3 the weight given to the observation that at time period t  – 1 at the end of the current period t is 0.21.

The forecasting procedure for the IMA (1, 1) model is equivalent to first-order exponential smoothing.