What important assumption is made about statistical


1. Select a country outside from the G8 Nations, from secondary resources found on the web, compile the following data for at least a 4 year period prior to present:

a. Principal imports

b. Principal exports

c. Cultural, sociological, and political climate: an overview of noneconomic conditions affecting market

d. Overview of market conditions

e. Competitive environment/situation

2. Select the best statement from the following:

a. The mean absolute deviation can be used as a measure of forecast error

b. Usually forecast error is distributed normally about the average demand

c. In a normal distribution the error will be within 1 MAD of the average about 60% of the time.

d. All of the above are true

e. None of the above is true

3. What important assumption is made about statistical (quantitative) forecasting methods?

a. The past is a valid indicator of the future

b. The demand trend is seldom linear

c. Seasonal variations are small.

d. Random variations are small

e. all of the above

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