Qualitative forecasting methods are used when:
a. historical data on the variable being forecast are available.
b. information on past values of the variable being measured is quantifiable.
c. historical data on the variable being forecast are either unavailable or are not applicable.
d. it is reasonable to assume that past is prologue.
Question 2
True or False When the purpose of sampling is to detect when a process becomes too variable, the chart of choice will be a c-chart.
Indicate whether the statement is true or false