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CBSE Questions for Class 11 Commerce Economics Collection Of Data Quiz 1 - MCQExams.com
CBSE
Class 11 Commerce Economics
Collection Of Data
Quiz 1
The standard error of the proportion is given by ________.
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$$\dfrac{n(1 - P)}{n}$$
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$$\sqrt{\dfrac{P(1 - P)}{n}}$$
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$$\dfrac{n(1 + P)}{n}$$
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$$\dfrac{n(1 \div P)}{n}$$
Explanation
Standard error of the proportion is the unit which measures variation in proportion of a character from sample to population. In the formula given above, p represents proportion and n represents number of people.
Un-biased errors may arise ______________.
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some items are chosen deliberately in a random sampling method
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some items are not chosen deliberately in a random sampling method
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from the difference between the items that are included in the sample and items that are not included
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the items should be fairly large
Explanation
Unbiased errors are those errors that arise not because of the personal judgement but because of the problem in determining samples i.e. difference between the items that are included for the sampling purpose and items that are not included.
Primary data may be collected by __________________.
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mailed questionnaire method
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scheduled sent through enumerators
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telephonic survey
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Any of the above
Explanation
Primary data is the data, which is collected for the first time by investigators. It is also known as raw data. It is the first-hand information. It refers to the collection of data for a specific purpose. It is original in nature. Primary data is more reliable, accurate and adequate than the secondary data. It may be collected by mailed questionnaire method, scheduled sent through enumerators and telephonic survey.
Under _________, a well designed questionnaire is mailed to the informants with a request to fill it up and return the same within the specific time schedule.
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direct personal interview method
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mailed questionnaire method
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information received from local agencies or correspondents
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indirect oral interview method
Explanation
Under mailed questionnaire method, a well designed questionnaire is mailed to the informants with a request to fill it up and return the same within the specific time schedule. By this method, a wide range of people can be connected.
Primary data is more ________________.
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reliable
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accurate
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adequate
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All of above
Explanation
Primary data is the data, which is collected for the first time by investigators. It s also known as raw data. It is the first-hand information. It refers to the collection of data for a specific purpose. It is original in nature. Primary data is more reliable, accurate and adequate than the secondary data.
Alternative hypothesis is equal to____________.
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$$\bar{X} = \mu$$
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$$\bar{X} \neq \mu$$
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$$\bar{X} - \mu$$
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$$\bar{X} + \mu$$
Explanation
The alternative hypothesis testing is contrary to null hypothesis. It shows that there is a statistical significance between two variables and also the mean is not equal to the variable.
Which of the following is/are not internal sources of secondary data.
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Sales Report
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Company information
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Business journals
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Financial Statements
Explanation
Business journals are not the internal source of secondary data.
Option $$C$$ is correct.
NSSO is the _______________.
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National Survey Organization
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National Sample Survey Organization
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National Security S
urvey Organization
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National Unemployment Survey Organization
Explanation
The National Sample Survey Organisation is an organisation under
Ministry of Statistics and Programme Implementation, Government of India which conducts socio-economic surveys.
Biased errors may arise __________.
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from the difference between the items that are included in the sample and items that are not included
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some items are chosen deliberately in a random sampling method
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some items are not chosen deliberately in a random sampling method
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the items should be fairly large
Explanation
Biased errors are those errors that arise due to the personal judgement or biasness of a researcher regarding any individual or item of an population.
Which of the following is not a method of collection of primary data.
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Questionnaires
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Interviews
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Demonstration
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Case studies
Explanation
Primary data is the data which is observed or collected from first hand experience.The main methods of primary data are as following
Questionnaires
Interviews
Observations
Case studies
portfolios
critical incident
Questionnaire is a set or questions with a choice of answer for the purpose survey.
Interview is the technique used to understand people's attitudes,preferences or behavior.
Case studies involve measuring what is there and how it got there.
So we can see that data collected from Questionnaires,interviews and case studies will be categorized in primary data as these data is always collected from first hand experience.
Data collected in the past or other parties are called secondary data.Demonstration is a practical explanation or exhibition of how something works or is performed.So Demonstration will be categorized in Secondary data.
So option C is correct.
________ is the data, which is collected for the first time by investigators.
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Published data
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Primary Data
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Processed data
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Secondary Data
Explanation
Primary data is the data, which is collected for the first time by investigators. It s also known as raw data. It is the first-hand information. It refers to the collection of data for a specific purpose.
Which method of data collections covers the widest area?
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Telephone interview method
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Direct interview method
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Mailed questionnaire method
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All of above
Explanation
Under mailed questionnaire method, a well designed questionnaire is mailed to the informants with a request to fill it up and return the same within the specific time schedule. By this method, a wide range of people can be connected.
Under_________
method investigator instead of presenting himself before the informants contact them on telephone and collect the desired information.
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telephonic survey
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direct personal interview
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indirect oral interview
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questionnaire sent through enumerators
Explanation
The quickest method to collect primary data is telephonic survey. A wide range of people can be connected through this method. People are asked questions through the use of telephone and data is collected according to their answers. Thus, under telephonic survey method, investigator instead of presenting himself before the informants contact them on telephone and collect the desired information.
Statistical data relating to any subject could be collected ______________.
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by actual counting
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by
measurement
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by
estimation
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Any of the avove
Explanation
Statistical data relating to any subject could be collected by any of the following- by actual counting, by measurement and by estimation.By a system of measuring a particular information, data could be collected by measurement. Whereas, by estimation, a point estimate is calculated to obtain a statistical data.
The quickest method to collect primary data is _____________.
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personal interview
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indirect interview
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mailed questionnaire method
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telephonic survey
Explanation
The quickest method to collect primary data is telephonic survey. A wide range of people can be connected through this method. People are asked questions through the use of telephone and data is collected according to their answers.
Which of the following statements is true?
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A sample in which a unit is selected after replacing the unit selected earlier in the population is called a sample without replacement.
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If a unit is to be destroyed during an inquiry then sample inquiry is not necessary but also inevitable.
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In any sampling method, the sample size is larger than the population size.
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Stratified random sampling is best if the population is homogeneous.
Which of the following are the methods for collection of secondary data?
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Personal Investigation
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Government Organizations
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Through Investigators
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Research Journals and Newspapers
Suppose we are using stratified sampling for a particular population and have divided it into strata of different sizes. How can we now make sample selection?
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Select an equal number of units from each stratum at random.
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Draw unequal number of units from each stratum and weigh the result.
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Draw number of units from each stratum proportional to their size in the population
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None of the above
Which of the following statement is true?
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In stratified random sampling, all the units of the population have equal chance of being selected in the sample.
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In simple random sampling, all units of the population have equal chance of being selected in the sample.
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In any simpling method, the size does not depend on population.
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In systematic sampling, all units of the population have equal chance of being elected in the sample.
The collection of statistical data must be in a ________ manner.
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careful
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systematic
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careful and systematic
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arbitrary
Explanation
The collection of statistical data must be in a careful and systematic manner, otherwise, false result will be obtained. To get a reliable and accurate data, the collection of data must be in a careful manner.
Which of the following methods can be used for the collection of primary data?
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Direct personal observation
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Published sources
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Unpublished sources
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All of the above
Explanation
Primary data refers to the data that has been collected for the first time i.e. it has not been published earlier. Direct personal observation is a method for collecting primary data as it is been recorded for the first time.
Secondary data refers to __________.
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the data that have already been collected and used by some agency
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the data collected for the first time
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the data collected by the Government
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the data collected by the private enterprises
Explanation
Secondary data refers to the data that has been collected earlier by any agency for their particular project and now it has been used by others for their own project.
Which of the following method comes first in collecting primary and secondary data?
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Questionnaire Method
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Panel Method
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Observation Method
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Interview Method
Explanation
In observation method, the data is collected from the field with the help of the observer.
Therefore, the observation method comes first in collecting primary and secondary data.
Population are unlimited in size are referred to as____________.
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infinite populations.
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finite populations.
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census method.
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none of the above
Explanation
Population refers to an entire set of people or objects present for the purpose of gathering data and when the population is unlimited in size i.e. it cannot be ascertained easily, it is known as infinite population.
Which of the following is/are not the methods of collection of primary data.
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Observation Method
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Interview Method
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Questionnaire Method
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Alternative Method
Explanation
There are various methods for the collection of primary data mainly in surveys and descriptive researches.
The observation, interview and questionnaire methods, we collect the primary data.
A list of all units under study is known as _________.
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type of inquiry
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the frame
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standard of accuracy
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method of data collection
Explanation
Sampling Frame refers to the set of people or objects in the population from whom the information can be collected or who can be sampled for the purpose of gathering information.
Primary data mean________.
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the data that have already been collected by some agency.
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the data that have already been used by some agency.
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the data collected for the first time.
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both (A) and (B).
Explanation
Primary data refers to the data that has been collected for the first time and for a unique purpose, i.e., it has not been published earlier. For example, data collected by a student for his/her project.
Which of the following operations is conducted after a gap of every ten years?
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Economic survey
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Estimates of Foreign Direct Investment (FDI)
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Compilation of Human Development Report
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General Census
Explanation
General census is official counting of a region's or nation's people and compilation of economics , social and other data usually for formulation of development policies and plans etc.
General census is an operation which is conducted after a gap of every ten years .
Which of the following is a very costly and time-consuming method?
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Mailed questionnaries
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Schedules sent through enumerators
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Information through agencies
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Indirect oral interview
Explanation
Schedules sent through enumerator is a method for collecting primary data in which schedules are sent to the enumerators and then they collect the data. It is a very time consuming method and costly.
The formula of Null hypothesis is _________.
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$$\bar{X} = \mu$$
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$$\bar{X} \neq \mu$$
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$$\bar{X} - \mu$$
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$$\bar{X} + \mu$$
Explanation
Null hypothesis attempts to show that a single variable is no different than its mean as it is shown above. It shows that no statistical significance exists in a given set of operations.
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