A trend component of a time series is a long-term, relatively smooth pattern or direction exhibited by a series, and its duration is more than one year
a. True
b. False
Indicate whether the statement is true or false
True
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Which of the following is the correct formula for calculating return on investment?
A) Net profit / Sales B) Gross profit / Sales C) Operating income / Average total assets D) Earnings available to stockholders / Number of outstanding shares of stock
Article 9 applies to secured transactions in both real and personal property
Indicate whether the statement is true or false
In its approximate form the Fisher effect may be written as ________. Where: i = the nominal rate of interest, r = the real rate of return and ? = the expected rate of inflation
A) i = (r)(?) B) i = r + ? + (r)(?) C) i = r + ? D) i = r + 2?
Answer the following statement(s) true (T) or false (F)
1. Smoothing methods are more appropriate for a stable time series than when significant trend or seasonal patterns are present. 2. The exponential smoothing forecast for any period is a weighted average of all the previous actual values for the time series. 3. The mean squared error is obtained by computing the average of the squared forecast errors. 4. If a time series has a significant trend pattern, then one should not use a moving average to forecast. 5. For a time series with relatively little random variability, we should use larger values of the smoothing constant to provide the advantage of allowing the forecasts to react more quickly to changing conditions.