Information from Correspondents – Methods of Primary Data Collection
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The investigator appoints local agents or correspondents in different places to collect information under this method. These correspondents collect and transmit the information to...
Mailed Questionnaire Method – Methods of Primary Data Collection
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Under this method, a list of questions pertaining to the survey which is known as ‘Questionnaire’ is prepared and sent to the various informants...
Schedules Sent Through Enumerators – Methods of Primary Data Collection
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One of the methods for data collection is sending schedules through the enumerators or interviewers. The enumerators contact the informants, get replies to the...
How to Calculate Descriptive statistics using R
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In this post, I will explain how to calculate basic descriptive statistics using R. The following R scripts helps to calculate descriptive statistics such...
What is meant by Sampling Error? How does it happen?
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In a sample survey, since only a small portion of the population is studied its results are bound to differ from the census results...
What is Hypothesis? What are its types and characteristics?
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“Hypothesis may be defined as a proposition or a set of propositions set forth as an explanation for the occurrence of some specified group...
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