I the Cyclical Component of a Time Series Is Described

question 35

Multiple Choice

i. The cyclical component of a time series is described in terms relative to the seasonal index. ii. The irregular component of a time series is the easiest to measure.
iii. The ratio-to-moving average method removes the time series trend component, resulting in 12 numbers that are called specific seasonals.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) and (ii) are correct statements but not (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

---

Definitions:

Ratio Scale

The scale of measurement for a variable if the data demonstrate all the properties of interval data and the ratio of two values is meaningful. Ratio data are always numeric.

Nominal Scale

The scale of measurement for a variable when the data are labels or names used to identify an attribute of an element. Nominal data may be nonnumeric or numeric.

Ordinal Scale

A ranking scale used to measure variable where the order of values is significant, but the difference between values is not uniform.

Rank Order

A method of arranging data points based on their value, from highest to lowest or vice versa.