Autoregressive models a. use the average of the most recent data ...

[magmichele12]

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 time series.

Question 2

Natalie needs to compare the number of employees by job title for the last five years. Which of the following charts should Natalie use?
 a. scatter chart
 
  b. bubble chart
 
  c. clustered-column (bar) chart
  d. line chart

[laurnthompson]

Answer to Question 1

d
RATIONALE: Autoregressive models occur whenever all the independent variables are previous values of the time series.

Answer to Question 2

c
RATIONALE: A clustered-column (bar) chart is a special type of column (bar) chart in which multiple bars are clustered in the same class to compare multiple variables.