2 Decision Matrices
A decision matrix is an aid to the `determination of sample size for
variable sampling programs and can be used for either simple random or
stratified random sampling designs. The decision matrix is simply a tabular
presentation that incorporates the factors necessary to determine sample
size: (a) an estimate of the mean, (b) an estimate of the variability,
desired precision, (d) the acceptable probability of error, and (e) the
costs associated with sampling. See Gaugush (1987) for a more complete
discussion of determining sample size and the use of decision matrices.
Program Execution
To run the Decision Matrices program, simply type
at the
DOS prompt. Be sure your default directory (i.e., the directory that you
are in when you enter the above command) contains all of the files on the
Sampling Design Software disk.
After the above command is entered, the program will prompt you for
all of the necessary inputs. Program flow is as follows:
a. Introductory screen.
Prompt for output route output may be routed to either the screen
only or to a disk
as well as the screen (if disk file output is
chosen, the program will prompt for a file name).
c. Data entry.
d. View output.
e. Repeat analysis with new data.
Exit program.
Chapter 2 Decision Matrices
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