Polling, part II According to Pew Research, the contactrate (probability of contacting a selected household) was 90% in 1997 and 62% in 2012. However, the coopera-tion rate (probability of someone at the contacted house-hold agreeing to be interviewed) was 43% in 1997 and dropped to 14% in 2012.a) What was the probability (in 2012) of obtaining aninterview with the next household on the sample list?(To obtain an interview, an interviewer must bothcontact the household and then get agreement for theinterview.) b) Was it more likely to obtain an interview from a ran-domly selected household in 1997 or in 2012?
Polling, part II According to Pew Research, the contactrate (probability of contacting a selected household) was 90% in 1997 and 62% in 2012. However, the coopera-tion rate (probability of someone at the contacted house-hold agreeing to be interviewed) was 43% in 1997 and dropped to 14% in 2012.a) What was the probability (in 2012) of obtaining aninterview with the next household on the sample list?(To obtain an interview, an interviewer must bothcontact the household and then get agreement for theinterview.) b) Was it more likely to obtain an interview from a ran-domly selected household in 1997 or in 2012?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 50E: Flexible Work Hours In a recent survey, people were asked whether they would prefer to work flexible...
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Polling, part II According to Pew Research, the contact
rate (probability of contacting a selected household) was
rate (probability of contacting a selected household) was
90% in 1997 and 62% in 2012. However, the coopera-
tion rate (probability of someone at the contacted house-
hold agreeing to be interviewed) was 43% in 1997 and
tion rate (probability of someone at the contacted house-
hold agreeing to be interviewed) was 43% in 1997 and
dropped to 14% in 2012.
a) What was the probability (in 2012) of obtaining an
interview with the next household on the sample list?
(To obtain an interview, an interviewer must both
contact the household and then get agreement for the
interview.)
a) What was the probability (in 2012) of obtaining an
interview with the next household on the sample list?
(To obtain an interview, an interviewer must both
contact the household and then get agreement for the
interview.)
b) Was it more likely to obtain an interview from a ran-
domly selected household in 1997 or in 2012?
domly selected household in 1997 or in 2012?
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