Advantages of Statistical Methods:
a.Involve relatively large number of observations.
b.Analysis is more objective.
c. Averages and percentages are calculated.
d.Permits the researcher to make more accurate generalizations.
e. Reliability of the generalizations can be measured.
Disadvantages of the Statistical Methods
a.Inability to prove cause and effect relationship.
b.With increase in the number of factors the analysis becomes more and complicated.