Question

State with reasons why sample survey is carried out???

Answer 1

You can collect unbiased survey data and develop sensible decisions based on analyzed results. By analyzing results, you can immediately address topics of importance, rather than waste time and valuable resources on areas of little or no concern.

Answer 2

Answer:

A goal in the design of sample surveys is to obtain a sample that is representative of the population so that precise inferences can be made. Sampling error is the difference between a population parameter and a sample statistic used to estimate it.

A sample survey consists of the following steps:

Define the target population.

Select the sampling scheme and sample size.

Develop the questionnaire.

Recruit and train the field investigators.

Obtain information as per the questionnaire.

Scrutinize the information gathered.

Analyze and interpret the information.