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1. Mail the survey to all subscribers. 2. Count the number of responses. 3. Compare the responses to the target population. 4. If there are more responses from subscribers than there are in the target population, the study is most likely to suffer from nonresponse bias or undercoverage.
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Match the kind of bias that occurs with each description: a) Researchers word a survey to elicit a specific answer: [ Choose ] [ Choose ] b) Researchers use a convenience sampling method: Nonresponse Bias Voluntary Response Bias c) Very few people respond to a Undercoverage survey: Response Bias
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Voluntary bias is caused by researchers word a survey you early seat is specific answer. Yeah, Mhm. It was next to our knees. The result was to use a convenience sampling metal. Voluntary response bias is the same as this type of bias. Few will be free to answer. Who is that away? Which is biased in coverage?
Amat 108-Elementary StatisticsName___________________________________Practice test #1Date___________________________________MULTIPLE CHOICE.Choose the one alternative that best completes the statement or answers the question.Answer the question.1)A magazine publisher mails a survey to every subscriber asking about the quality of itssubscription service.The total number of subscribers represents what?A)Involuntary samplingB)The populationC)The sampling frameD)A censusE)The population parameter of interest1)
2)A magazine publisher mails a survey to every subscriber asking about the quality of itssubscription service.Mailing a survey to every subscriber represents what?2)
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3)A magazine publisher mails a survey to every subscriber asking about the timeliness of itssubscription service.The publisher finds that only 5% of the subscribers responded.This 5%represents what?C)The sampling method3)
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D)A censusE)The population parameter of interest4)A magazine publisher mails a survey to every subscriber asking about the quality of its magazine.The publisher wants 100% of the subscribers to respond.This 100% response rate will representwhat?4)
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5)A magazine publisher will mail a survey to 12% of its subscribers that will be chosen at random.The survey asks about the quality of its subscription service.All of the subscribers, who have anequal and random chance to be chosen for this survey, represent what?A)The populationB)A censusC)The sampling methodD)The sampling frameE)The population parameter of interest5)
Related Questions
Q4:
A magazine publisher always mails out a questionnaire four months before a subscription ends.This questionnaire asks its subscribers if they are going to renew their subscriptions.On average,only 9% of the subscribers respond to the questionnaire.Of the 9% who do respond,an average of 49% say that they will renew their subscription.This 9% who respond to the questionnaire are known as what? A)The sample B)The bias C)The population D)The sampling frame E)The population parameter of interest
Q5:
A Statistics instructor wishes to know the average age (in month)of his 200 students.He decides to choose 25 students from the class and ask them for their age.All 200 names are put in a hat and 25 names are then chosen at random (without replacement).The average age of the students chosen is observed to be 231 months.In this example,"25" is known as what? A)The sample B)A census C)The population D)The population size E)The sample size
Q6:
A computer network manager wants to test the reliability of some new and expensive fiber-optic Ethernet cables that computer department just received.The computer department received 3 boxes containing 10 cables each.The manager does not have the time to test every cable in each box.The manager will choose one box at random and test 2 cables chosen randomly within that box.What is the sample? A)The one box of 10 cables chosen at random from the 3 boxes B)The proportion of reliable cables C)The 2 cables chosen for testing D)The 3 boxes E)30 cables
Q7:
Mr.Smith works at a computer consultant company that provides technical information to computer departments of various manufacturing companies.Mr.Smith is alarmed at the number of spyware programs on the internet.Mr.Smith successfully samples every one of his clients only to ask (yes or no)if they have had any known problems with spyware infections on their computers or network.None of Mr.Smith's clients reported any spyware infections.With regards to Mr.Smith's contacting his clients,what is the census? A)The total number of spyware programs on the internet B)The number of spyware infections outside the sampling frame C)Zero,there were no known infections D)The sampling of all of Mr.Smith's clients E)The total number of computers at all of Mr.Smith's clients
Q8:
A computer network manager wants to test the reliability of some new and expensive fiber-optic Ethernet cables that the computer department just received.The computer department received 8 boxes containing 40 cables each.The manager does not have the time to test every cable in each box.The manager will choose one box at random and test 8 cables chosen randomly within that box.What is the population? A)The one box of 40 cables chosen at random from the 8 boxes B)The entire shipment of 8 boxes C)The entire shipment of 320 cables D)The 8 cables chosen randomly for testing E)The proportion of reliable cables
Q10:
A Statistics instructor wishes to know the average age (in month)of his 200 students.He decides to choose 25 students from the class and ask them for their age.All 200 names are put in a hat and 25 names are then chosen at random (without replacement).The average age of the students chosen is observed to be 231 months.In this example,"231" is known as what? A)The sample size B)The sample statistic C)The population statistic D)The population parameter E)The sample parameter
Q11:
A magazine publisher mailed a survey to all of its subscribers asking if the magazine is helpful in their daily lives.Every subscriber responded and 65% replied that the magazine was helpful.The value 65% is known as what? A)The sampling method B)The population parameter of interest C)The bias D)The population E)The sampling frame
Q12:
The spell-checker in a desktop publishing application may not catch all misspellings (e.g.their,there)or correctly interpret the spellings of proper names.Jackie is an expert editor and can proofread extremely quickly.Jackie is hired by a book publisher to check the spelling of every word in the latest proof of a history book.With regard to Jackie's assignment,what is the population? A)The number of history books of this edition that are printed upon Jackie's approval B)The latest proof of the history book C)Finding misspellings in the latest proof of the history book D)Every word in the latest proof of the history book E)The total number of misspellings that Jackie finds in the latest proof of the history book
Q13:
A magazine publisher mails a survey to every subscriber asking about the quality of its subscription service.The total number of subscribers represents what? A)The sampling frame B)Involuntary sampling C)The population parameter of interest D)A census E)The population size
Q14:
A computer network manager wants to test the reliability of some new and very expensive fiber-optic Ethernet cables that the computer department just received.The computer department received 7 boxes containing 50 cables each.The manager does not have the time to test every cable in each box,so the manager assigns a subordinate to do a census.How many cables will be sampled if the subordinate does a census? A)50 cables B)350 cables C)10 cables D)7 cables E)It will depend on the sampling of cables and the sampling of boxes (the sampling frame).