Question

Identify the type of sampling bias guaranteed to occur in each of the sampling schemes, based on the information provided. Some sampling schemes may incur multiple types of bias. A political poll is conducted by contacting people on landline phones. The pollsters did not keep track of how many people they contacted who did not respond. A political poll is administered by contacting people on landline phones. The pollsters contacted 10,000 households, and 2366 individuals agreed to speak with the caller. A political poll is conducted by asking the listeners of a radio program to call in. A political poll asks the question, "If you found out that Candidate A was given a large sum of money by Special Interest Group B, would that change your opinion of how hypocritical Candidate A is?" Answer Bank nonresponse response undercoverage self-selection 

          Identify the type of sampling bias guaranteed to occur in each of the sampling schemes, based on the information provided. Some sampling schemes may incur multiple types of bias.

A political poll is conducted by contacting people on landline phones. The pollsters did not keep track of how many people they contacted who did not respond.

A political poll is administered by contacting people on landline phones. The pollsters contacted 10,000 households, and 2366 individuals agreed to speak with the caller.

A political poll is conducted by asking the listeners of a radio program to call in.

A political poll asks the question, "If you found out that Candidate A was given a large sum of money by Special Interest Group B, would that change your opinion of how hypocritical Candidate A is?"

Answer Bank
nonresponse response undercoverage self-selection
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Identify the type of sampling bias guaranteed to occur in each of the sampling schemes, based on the information provided. Some sampling schemes may incur multiple types of bias. A political poll is conducted by contacting people on landline phones. The pollsters did not keep track of how many people they contacted who did not respond. A political poll is administered by contacting people on landline phones. The pollsters contacted 10,000 households, and 2366 individuals agreed to speak with the caller. A political poll is conducted by asking the listeners of a radio program to call in. A political poll asks the question, "If you found out that Candidate A was given a large sum of money by Special Interest Group B, would that change your opinion of how hypocritical Candidate A is?" Answer Bank nonresponse response undercoverage self-selection

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Elementary Statistics a Step by Step Approach
Elementary Statistics a Step by Step Approach
Allan G. Bluman 9th Edition
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Identify the type of sampling bias guaranteed to occur in each of the sampling schemes, based on the information provided. Some sampling schemes may incur multiple types of bias. A political poll is conducted by contacting people on landline phones. The pollsters did not keep track of how many people they contacted who did not respond. A political poll is administered by contacting people on landline phones. The pollsters contacted 10,000 households, and 2366 individuals agreed to speak with the caller. A political poll is conducted by asking the listeners of a radio program to call in. A political poll asks the question, "If you found out that Candidate A was given a large sum of money by Special Interest Group B, would that change your opinion of how hypocritical Candidate A is?" Answer Bank: nonresponse, response, undercoverage, self-selection
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Transcript

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00:01 We're looking at sampling bias and types of sampling bias, and we've got four scenarios.
00:08 And we want to note which type of sampling bias were guaranteed to get.
00:13 So the first scenario, we have a poll that's conducted by contacting people on landline phones.
00:27 And that's your first key right there.
00:29 And this is going to be under coverage bias.
00:32 And the reason for that is because under coverage bias occurs when a part of the population is excluded from your type of sample.
00:47 So here we're only talking to people with landline phones and not everyone has a landline phone.
00:52 So there's a chunk of the population not represented.
00:56 And then number two, we have a political poll that's administered by contacting people on landline phones.
01:02 Same scenario.
01:05 And they contacted 10 ,000 households.
01:08 But only 2366 out of 10 ,000 people agreed to speak.
01:17 So this, we have non -response bias.
01:29 So non -response bias occurs when survey participant is unwilling or unable to respond to a survey question or the entire survey.
01:38 And so here we have the almost 8 ,000 people is at 70 ,000.
01:44 7 ,000, over 7 ,000 people didn't respond to the survey...
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