Worksheet: Collection of Data - 2 | Economics Class 11 - Commerce PDF Download

Fill in the Blanks

Q1: Primary data refers to information collected directly from _______________ for research purposes.

Q2: Secondary data is data that has already been collected by _______________ for their own purposes.

Q3: A questionnaire is a research tool consisting of a series of _______________.

Q4: An enumerator's role is to gather all the information and data required for a _______________.

Q5: Open-ended questions do not limit respondents to predetermined _______________.

Q6: Sampling error can be reduced by increasing the _______________.

Q7: Probability sampling allows for _______________ to be made about the population.

Q8: Non-sampling errors include data acquisition errors, non-response errors, and _______________.

Q9: The National Sample Survey Office (NSSO) is a government agency in _______________.

Q10: NSSO was established in the year _______________.

Assertion and Reason Based

Q1: Assertion: Primary data is more cost-effective than secondary data.
Reason: Primary data is collected directly for the current research problem.
(a) Both assertion and reason are true, and the reason is the correct explanation of the assertion.
(b) Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
(c) Assertion is true, but the reason is false.
(d) Assertion is false, but the reason is true.

Q2: Assertion: Closed-ended questions are suitable for collecting qualitative data.
Reason: Respondents must choose a response from a predefined set of answer options.
(a) Both assertion and reason are true, and the reason is the correct explanation of the assertion.
(b) Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
(c) Assertion is true, but the reason is false.
(d) Assertion is false, but the reason is true.

Q3: Assertion: Sampling error can be reduced by increasing the sample size.
Reason: Sampling error is the difference between the sample estimate and the actual value of the population characteristic.
(a) Both assertion and reason are true, and the reason is the correct explanation of the assertion.
(b) Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
(c) Assertion is true, but the reason is false.
(d) Assertion is false, but the reason is true.

Q4: Assertion: Non-sampling errors are more difficult to minimize than sampling errors.
Reason: Non-sampling errors include data acquisition errors and sampling bias.
(a) Both assertion and reason are true, and the reason is the correct explanation of the assertion.
(b) Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
(c) Assertion is true, but the reason is false.
(d) Assertion is false, but the reason is true.

Q5: Assertion: The NSSO is a government agency that conducts regular socio-economic surveys in India.
Reason: The NSSO hires staff members from the Indian Statistical Service and the Subordinate Statistical Service.
(a) Both assertion and reason are true, and the reason is the correct explanation of the assertion.
(b) Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
(c) Assertion is true, but the reason is false.
(d) Assertion is false, but the reason is true.

Very Short Answer Type Questions

Q1: Define primary data.

Q2: Give an example of secondary data source.

Q3: What is the advantage of using secondary data in research?

Q4: Explain the role of an enumerator in statistical investigations.

Q5: What is the purpose of a pilot survey?

Q6: Define census method.

Q7: What is meant by the population or universe in statistics?

Q8: Define sampling errors.

Q9: What is non-sampling bias?

Q10: When was the NSSO set up?

Short Answer Type Questions

Q1: Differentiate between primary data and secondary data. 

Q2: Explain the advantages and disadvantages of using a questionnaire as a data collection method. 

Q3: Describe the role of an enumerator in the data collection process. 

Q4: Differentiate between open-ended and closed-ended questions in surveys. 

Q5: Discuss the advantages and disadvantages of conducting personal interviews as a data collection method. 

Q6: Explain the concept of probability sampling and provide an example. 

Q7: Define sampling bias and explain why it is important to minimize it in research. 

Q8: Describe the functions and significance of the National Sample Survey Office (NSSO) in India.

Long Answer Type Questions

Q1: Discuss the primary differences between primary data and secondary data, and provide examples of each. 

Q2: Explain the various types of non-probability sampling methods, and discuss their advantages and disadvantages. 

Q3: Describe the concept of sampling error, its causes, and ways to minimize it in research. 

Q4: Elaborate on the factors that can lead to non-sampling errors in data collection, and provide strategies to reduce their impact.