Merits, Limitations, Solved Example Problems - Quota Sampling | 11th Statistics : Chapter 2 : Collection of Data and Sampling Methods
Chapter: 11th Statistics : Chapter 2 : Collection of Data and Sampling Methods
Quota Sampling
Quota
Sampling
This
is another non-probability sampling method. In this method, the population is
divided into different groups and the interviewer assign quotas to each group.
The selection of individuals from each group is based on the judgment of the
interviewer. This type of sampling is called quota sampling. Specified sizes of
number of certain types of peoples are included in the sample.
Merits:
·
The
selection of the sample in this method is quick, easy and cheaper.
·
May
control sample characteristics.
·
More
chance of representative.
Limitations:
·
Selection
bias.
·
The
sample is not a true representative and statistical properties cannot be
applied.
Example 2.5
A
selection committee wants to compose a cricket team (11 players) for a test
match.
In
the composition of a cricket team, the selection committee forms groups
compartmentalize as pace bowlers, spinners, all-rounders, batsmen and wicket
keepers. The committee fixed quota for each group based on the pitch and the
opponent teams’ strength. Then, from each group they select the required number
of players using judgement. Look the table.
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