I the Irregular Component of a Time Series Is the Easiest

question 18

Multiple Choice

i. The irregular component of a time series is the easiest to measure.
ii. The ratio-to-moving average method removes the time series trend component, resulting in 12 numbers that are called specific seasonals.
Iii) For a quarterly time series, the initial step, using the ratio-to-moving average method, is to remove the seasonal components from the time series using a 3-month centered moving average.

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

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Definitions:

Compensating Differentials

Differences in wages that result from differences in working conditions. Risky jobs usually pay higher wages; highly desirable jobs usually pay lower wages.

Annual Salary

Annual Salary is the fixed amount of money or compensation paid to an employee by an employer over a year for their services.

Occupational Segregation

The distribution of people across and within occupations and jobs, based significantly on demographic characteristics, notably gender or race.

Demographic Characteristics

The statistical characteristics of human populations, such as age, sex, and income, used especially to identify markets.