1. A study considered the question, "Are you a registered voter?" Accuracy of confirmed by a check of city voting records. Two methods of survey were used: a face-to-face interview and a telephone interview. A random sample of 89 people were asked the voter registration question face to face. Of those sampled, seventy-six respondents gave accurate answers (as verified by city records). Another random sample of 90 people were asked the sam question during a telephone interview. Of those sampled, eighty-three respondents gave accura answers. Assume the samples are representative of the general population. At the 95% level, o you detect compared with the proportion of accurate responses from telephone interviews(Show your confidence in interval notation and show YOur internretation) response was any difference in the proportion of accurate responses from face-to-face interviews

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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In the end can you interpret ion and interval notation.
1. A study considered the question, "Are you a registered voter?" Accuracy of response was
confirmed by a check of city voting records. Two methods of survey were used: a face-to-face
interview and a telephone interview. A random sample of 89 people were asked the voter
registration question face to face. Of those sampled, seventy-six respondents gave accurate
answers (as verified by city records). Another random sample of 90 people were asked the same
question during a telephone interview. Of those sampled, eighty-three respondents gave accurate
answers. Assume the samples are representative of the general population. At the 95% level, do
you detect any difference in the proportion of accurate responses from face-to-face interviews
compared with the proportion of accurate responses from telephone interviews(Show your
confidence in interval notation and show your interpretation)
Transcribed Image Text:1. A study considered the question, "Are you a registered voter?" Accuracy of response was confirmed by a check of city voting records. Two methods of survey were used: a face-to-face interview and a telephone interview. A random sample of 89 people were asked the voter registration question face to face. Of those sampled, seventy-six respondents gave accurate answers (as verified by city records). Another random sample of 90 people were asked the same question during a telephone interview. Of those sampled, eighty-three respondents gave accurate answers. Assume the samples are representative of the general population. At the 95% level, do you detect any difference in the proportion of accurate responses from face-to-face interviews compared with the proportion of accurate responses from telephone interviews(Show your confidence in interval notation and show your interpretation)
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