LA researcher is collecting individual data by asking visitors in a train station in a medium sized town to fill in a questionnaire. It takes nearly 30 minutes to complete the survey questions. To encourage higher participation rate, the researcher provides a small financial incentive that is enough to buy a sandwich. The researcher wants to use this sample to make predictions about effect of using social media on health among the residents of the town. a. Explain the random sampling assumption, that is one of the Gauss-Markov assumptions for linear regressions. b. Do you think this assumption is satisfied in the sample collected by the researcher? c. What are the possible consequences of violation of random sampling assumption for predictions based on this sample?
LA researcher is collecting individual data by asking visitors in a train station in a medium sized town to fill in a questionnaire. It takes nearly 30 minutes to complete the survey questions. To encourage higher participation rate, the researcher provides a small financial incentive that is enough to buy a sandwich. The researcher wants to use this sample to make predictions about effect of using social media on health among the residents of the town. a. Explain the random sampling assumption, that is one of the Gauss-Markov assumptions for linear regressions. b. Do you think this assumption is satisfied in the sample collected by the researcher? c. What are the possible consequences of violation of random sampling assumption for predictions based on this sample?
Chapter1: Making Economics Decisions
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![.A researcher is collecting individual data by asking visitors in a train station in a medium
sized town to fill in a questionnaire. It takes nearly 30 minutes to complete the survey
questions. To encourage higher participation rate, the researcher provides a small financial
incentive that is enough to buy a sandwich. The researcher wants to use this sample to
make predictions about effect of using social media on health among the residents of the
town.
a. Explain the random sampling assumption, that is one of the Gauss-Markov
assumptions for linear regressions.
b. Do you think this assumption is satisfied in the sample collected by the researcher?
c. What are the possible consequences of violation of random sampling assumption for
predictions based on this sample?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5092d283-37fd-4762-962c-92db43347004%2Fc06a4730-9bd2-4196-a57c-4f8d0d395866%2Fcz7y4r_processed.png&w=3840&q=75)
Transcribed Image Text:.A researcher is collecting individual data by asking visitors in a train station in a medium
sized town to fill in a questionnaire. It takes nearly 30 minutes to complete the survey
questions. To encourage higher participation rate, the researcher provides a small financial
incentive that is enough to buy a sandwich. The researcher wants to use this sample to
make predictions about effect of using social media on health among the residents of the
town.
a. Explain the random sampling assumption, that is one of the Gauss-Markov
assumptions for linear regressions.
b. Do you think this assumption is satisfied in the sample collected by the researcher?
c. What are the possible consequences of violation of random sampling assumption for
predictions based on this sample?
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