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Assuming you want the same sample sizes across the two surveys and you want a power of 80% and given the true proportion reporting Birmingham is a good place to live before and after the Games was 65% and 75%, respectively, what sample size would be needed?

Assuming you want the same sample sizes across the two surveys and you want a power of 80% and given the true proportion reporting Birmingham is a good place to live before and after the Games was 65% and 75%, respectively, what sample size would be needed?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 28PPS
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3. Birmingham claimed that the Commonwealth Games which highlighted the region has improved the image of the city amongst residents. In a random sample of 102 residents asked before the games 68 reported that they though Birmingham was a good place to live. After the games, in an independent sample, 89 out of 115 reported that Birmingham was a good place to live.
Transcribed Image Text:3. Birmingham claimed that the Commonwealth Games which highlighted the region has improved the image of the city amongst residents. In a random sample of 102 residents asked before the games 68 reported that they though Birmingham was a good place to live. After the games, in an independent sample, 89 out of 115 reported that Birmingham was a good place to live.
Assuming you want the same sample sizes across the two surveys and you want a power of 80% and given the true proportion reporting Birmingham is a good place to live before and after the Games was 65% and 75%, respectively, what sample size would be needed?
Transcribed Image Text:Assuming you want the same sample sizes across the two surveys and you want a power of 80% and given the true proportion reporting Birmingham is a good place to live before and after the Games was 65% and 75%, respectively, what sample size would be needed?
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