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- 1. Multiple Choice
We take an SRS of 100 people out of a phone book and give them a survey to see if they currently have a newspaper subscription. This type of bias is called what?
wording bias
response bias
nonresponse bias
undercoverage
- 2. Multiple Choice
We take an SRS of 100 people out of a phone book and give them a survey to see if they currently have a newspaper subscription. Which is a possible effect of undercoverage in this situation?
overpredict how many have subscriptions because people who use the phone book are probably more old school and also read a newspaper.
overpredict how many subscriptions because there's more people not using phone books than use phone books.
underpredict because if you can't read a newspaper then you can't read a phone book.
underpredict because the word "under" is in undercoverage
- 3. Multiple Choice
A study in Texas looked at seat belt use by drivers. Drivers were observed at randomly chosen stores. After they left their cars, they were asked questions about seat belt use. In all, 75% said they always used seat belts, yet only 61.5% were wearing seat belts when they pulled into the parking lot. What type of bias is this an example of?
undercoverage
nonresponse bias
response bias
wording bias
- 4. Multiple Choice
A study in Texas looked at seat belt use by drivers. Drivers were observed at randomly chosen stores. After they left their cars, they were asked questions about seat belt use. In all, 75% said they always used seat belts, yet only 61.5% were wearing seat belts when they pulled into the parking lot. How did response bias affect the results?
underpredict seat belts because they weren't expecting to be surveyed.
underpredict seat belts because the result was under what they told us.
overpredict seat belts because they didn't want to admit they weren't wearing them.
overpredict because they were in a hurry to get to the store.
- 5. Multiple Choice
Suppose you want to know the average amount of money spent by fans attending a baseball game. You get permission to conduct a survey at the stadium, but they won't let you survey fans in the box seats (most expensive and nicest). Using a calculator, you randomly select 100 seats, and during the game you ask the fans in those seats how much money they spent that day. This is an example of what type of bias?
wording bias
voluntary response bias
undercoverage
nonresponse bias
- 6. Multiple Choice
Suppose you want to know the average amount of money spent by fans attending a baseball game. You get permission to conduct a survey at the stadium, but they won't let you survey fans in the box seats (most expensive and nicest). Using a calculator, you randomly select 100 seats, and during the game you ask the fans in those seats how much money they spent that day. Which is an effect of undercoverage?
overpredict spending because we still get to survey most of the stadium.
overpredict spending because food is expensive at baseball games.
underpredict spending because we are sampling from under the overall population.
underpredict spending because the people who spent the most on tickets probably spent a lot on other things as well.
- 7. Multiple Choice
The following question was asked on a survey. "Some cell phone users have developed brain cancer. Should all cell phones come with a warning label explaining the danger of using cell phones?" This could be an example of what type of bias?
response bias
convenience sample bias
undercoverage
wording bias
- 8. Multiple Choice
The following question was asked on a survey. "Some cell phone users have developed brain cancer. Should all cell phones come with a warning label explaining the danger of using cell phones?" How might wording bias affect our results?
overpredict warning label support because people don't care about cancer.
overpredict warning label support because nobody wants to answer in favor of cancer.
underpredict warning label support because they want the results to be under what they used to be.
underpredict warning label support because more people would want warning labels if more people had cancer.
- 9. Multiple Choice
The following question was asked on a survey. "In view of escalating degradation and incipient resource depletion, would you favor economic incentives for recycling of resource-intensive consumer goods?" What kind of bias is most likely present here?
response bias
voluntary response bias
nonresponse bias
wording bias
- 10. Multiple Choice
The following question was asked on a survey. "In view of escalating degradation and incipient resource depletion, would you favor economic incentives for recycling of resource-intensive consumer goods?" How might wording bias have affected the results?
overpredict support because they wanted to sound smart.
overpredict support because they didn't want to sound dumb.
underpredict support because they wanted to appear eco-conscious.
unable to determine
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