The mean of a sample
a. is always equal to the mean of the population.
b. is always smaller than the mean of the population.
c. is computed by summing the data values and dividing the sum by (n - 1).
d. is computed by summing all the data values and dividing the sum by the number of items.
d
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In the matrix of transition probabilities, Pij is the conditional probability of being in state i in the future, given the current state j
Indicate whether the statement is true or false
The right to choose means that consumers must have a choice of products offered by different manufacturers and sellers.
Answer the following statement true (T) or false (F)
Good media buyers know that
A. television is superior to newspapers or radio. B. the most targeted medium is newspapers. C. many magazines serve only special-interest groups. D. media costs generally have little relation to audience size or circulation. E. All these answers are correct.
All of the following are true about qualitative forecasting methods except they
a. generally involve the use of expert judgment to develop forecasts. b. assume the pattern of the past will continue into the future. c. are appropriate when past data on the variable being forecast are not applicable. d. are appropriate when past data on the variable being forecast are not available.