The difference between the actual value of a parameter of the population and its estimate is the ____________.
Sampling errors
Non - sampling errors
Random sampling
Non - random sampling
______________ method is less expensive.
Mailing questionnaire
Personal interview
Telephone interview
All of these
____________ is a smaller group selected from the population from which the relevant information would be sought.
Survey
Sample
Pilot survey
None of these
In a ______________, every individual is given an equal chance of being selected for providing information.
____________ questions are used to get more than just a one word answers.
Open ended
Closed ended
Interview
Data
____________ questions are easy to use and to codify for analysis.
___________ refers to the differences between the sample estimate and the actual value of a characteristic of the population.
______________ are mainly selected on the basis of judgement,purpose,convenience or quota.
Non-random sampling
Non-sampling errors
The purpose of the survey is to ______________.
Collect data
Frequency distribution
Information
______________ is a method of gathering information from individuals.
Sampling
Primary data
Secondary data
