Author Question: Autoregressive models: a. use the average of the most recent data values in the time series as the ... (Read 88 times)

jrubin · **on:** Jun 24, 2018

Autoregressive models:
a. use the average of the most recent data values in the time series as the forecast for the next period.
b. are used to smooth out random fluctuations in time series.
c. relate a time series to other variables that are believed to explain or cause its behavior.
d. occur whenever all the independent variables are previous values of the same time series.

Question 2

Individual units can have higher quality than others, even while meeting traditional specifications. Deviations from the target lead to lower and lower quality of the unit. This concept is associated with a:
a. cause and effect diagram.
b. process flow chart.
c. check sheet.
d. Taguchi method.
e. Pareto diagram.