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A team of researchers (Singer et al., 2000) used the Survey of Consumer Attitudes to investigate whether incen- ives would improve the response rates on telephone surveys. A national sample of 735 households was randomly selected, and all 735 of the households were sent an "advance letter" explaining that the household would be contacted shortly for a telephone survey. However, 368 households were randomly assigned to receive a monetary incentive along with the ad- rance letter, and the other 367 households were assigned to receive only the advance letter. Here are the data on how nany households responded to the telephone survey.

A team of researchers (Singer et al., 2000) used the Survey of Consumer Attitudes to investigate whether incen- ives would improve the response rates on telephone surveys. A national sample of 735 households was randomly selected, and all 735 of the households were sent an "advance letter" explaining that the household would be contacted shortly for a telephone survey. However, 368 households were randomly assigned to receive a monetary incentive along with the ad- rance letter, and the other 367 households were assigned to receive only the advance letter. Here are the data on how nany households responded to the telephone survey.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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4.2.21 A team of researchers (Singer et al., 2000) used the Survey of Consumer Attitudes to investigate whether incen- tives would improve the response rates on telephone surveys. A national sample of 735 households was randomly selected, and all 735 of the households were sent an "advance letter" explaining that the household would be contacted shortly for a telephone survey. However, 368 households were randomly assigned to receive a monetary incentive along with the ad- vance letter, and the other 367 households were assigned to receive only the advance letter. Here are the data on how many households responded to the telephone survey. Received an incentive? Yes No Total Responded to the telephone survey? Yes 286 245 531 No 82 122 204 Total 368 367 735
Transcribed Image Text:4.2.21 A team of researchers (Singer et al., 2000) used the Survey of Consumer Attitudes to investigate whether incen- tives would improve the response rates on telephone surveys. A national sample of 735 households was randomly selected, and all 735 of the households were sent an "advance letter" explaining that the household would be contacted shortly for a telephone survey. However, 368 households were randomly assigned to receive a monetary incentive along with the ad- vance letter, and the other 367 households were assigned to receive only the advance letter. Here are the data on how many households responded to the telephone survey. Received an incentive? Yes No Total Responded to the telephone survey? Yes 286 245 531 No 82 122 204 Total 368 367 735
c. What are the variables recorded? For each variable, iden- tify the type of the variable (categorical or quantitative) and the role of the variable (explanatory or response). d. Did the study involve random sampling? If yes, what is the advantage of a randomly selected sample? If no, what is the disadvantage?
Transcribed Image Text:c. What are the variables recorded? For each variable, iden- tify the type of the variable (categorical or quantitative) and the role of the variable (explanatory or response). d. Did the study involve random sampling? If yes, what is the advantage of a randomly selected sample? If no, what is the disadvantage?
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