If the estimate of the trend component is 158.2, the estimate of the seasonal component is 94, the estimate of the cyclical component is 105, and the estimate of the irregular component is 98, then the multiplicative model will produce a forecast of _____.
a. 1.53
b. 1.53
c. 153.02
d. 153,020,532
Q. 2A table of uniformly distributed random numbers should be read
a. from left to right.
b. from top to bottom.
c. diagonally, starting from the top left corner and moving to the bottom right.
d. in any consistent sequence.
Q. 3If two nominal variables are unrelated, then the patterns exhibited in their corresponding bar charts should be approximately the same. If some relationship exists, then some bar charts will differ from others.
Indicate whether the statement is true or false
Q. 4If data for a time series analysis are collected on an annual basis only, which pattern can be ignored?
a. trend
b. seasonal
c. cyclical
d. horizontal
Q. 5The word uniform in the term uniform random numbers means
a. all the numbers have the same number of digits.
b. if one number is, say, 10 units above the mean, the next number will be 10 units below the mean.
c. all the numbers are odd or all are even.
d. each number has an equal probability of being drawn.
Q. 6To describe the relationship between two nominal variables you make a scatter diagram and look for a correlation.
Indicate whether the statement is true or false
Q. 7The forecasting method that is appropriate when the time series has no significant trend, cyclical, or seasonal effect is _____.
a. moving averages
b. mean squared error
c. mean average deviation
d. the qualitative forecasting method
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